ORCID Profile
0000-0002-6985-2880
Current Organisations
University of Technology Sydney
,
University of New England
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Optics And Opto-Electronic Physics | Nanotechnology | Polymers | Functional Materials | Materials Engineering | Materials Engineering Not Elsewhere Classified | Building Science and Techniques | Optical Physics | Condensed Matter Physics | Optical And Photonic Systems | Materials Engineering not elsewhere classified | Nanophotonics | Optical Physics Not Elsewhere Classified | Communications Technologies | Physical Chemistry Not Elsewhere Classified | Interior And Environmental Design | Nanotechnology | Interdisciplinary Engineering Not Elsewhere Classified | Interdisciplinary Engineering | Condensed Matter Physics—Other | Nanofabrication, Growth and Self Assembly
ANZSRC Socio-Economic Objective (SEO)
Plastic products (incl. Construction materials) | Energy Storage, Distribution and Supply not elsewhere classified | Energy Conservation and Efficiency not elsewhere classified | Paints | Other | Conservation and efficiency | Residential and commercial | Other | Network transmission equipment | Expanding Knowledge in Technology | Hydrogen Production from Renewable Energy | Energy Storage (excl. Hydrogen) | Polymeric materials (e.g. paints) | Energy distribution not elsewhere classified | Manufactured products not elsewhere classified | Computer hardware and electronic equipment not elsewhere classified | Coated Metal and Metal-Coated Products |
Related Links
Publications
Optical properties of dense self-assembled gold nanoparticle layers with organic linker molecules
Publisher: SPIE
Date: 03-11-2003
DOI: 10.1117/12.505603
A model for the optical response of obliquely deposited thin films
Publisher: IOP Publishing
Date: 14-02-1992
The polarizability of chains of touching cylinder pairs
Publisher: IOP Publishing
Date: 21-04-1993
The critical concentration for magnetic order in solid solutions of UO2with Th02and Zr02
Publisher: IOP Publishing
Date: 21-12-1974
Mesoporous gold sponge as a prototype ‘metamaterial’
Publisher: Elsevier BV
Date: 05-2007
Evolution of plasmonic response in growing silver thin films with pre-percolation non-local conduction and emittance drop
Publisher: IOP Publishing
Date: 02-06-2011
DOI: 10.1088/0022-3727/44/25/255102
Abstract: The optical response of growing silver thin films undergoes a transition dominated by three distinct plasmonic modes, two localized and one delocalized. Their admix as a function of added mass is analysed. The onset of the delocalized or Drude mode occurs before the sharp electrical percolation transition so optically the full insulator–metal transition is broadened. A scaling explanation supported by images shows Ag islands only have to link up over 200–300 nm to yield partial delocalization. The localized modes are (i) from silver nano-islands and (ii) a transitional anomalous mode, peaking near the dc critical percolation point, from islands surrounded by network. Growing silver within a multilayer oxide stack is compared with that on glass. The transition in thermal emittance matches that in the delocalized mode. Its broadening enables practical tuning of intermediate emittance by varying mass.
In situ deposition of high Tc materials using vacuum arc ablation with macroparticle filter
Publisher: Elsevier BV
Date: 10-1925
Optical response of arrays of spheres from the theory of hypercomplex variables
Publisher: American Physical Society (APS)
Date: 15-08-1994
Coloured paints based on iron oxide and silicon oxide coated flakes of aluminium as the pigment, for energy efficient paint: optical and thermal experiments
Publisher: Elsevier BV
Date: 09-2003
Ellipsometric studies of nanocomposite cermets
Publisher: Elsevier BV
Date: 1999
Useful angular selectivity in oblique columnar aluminum
Publisher: AIP Publishing
Date: 15-03-1991
DOI: 10.1063/1.348474
Abstract: A useful magnitude of angular selective transmittance of incident unpolarized light is demonstrated in obliquely deposited aluminum. Required deposition procedures and anisotropic optical properties are discussed. Angular selectivity is very strong at visible wavelengths but both experiment and theory indicate that a single oblique layer with well defined columns gives high transmittance at near-infrared wavelengths compared with normal films. There are ways of reducing this to enhance the energy control capability. Both solar and luminous angular selectivity are reported.
Energy Options for the 21st Century—An Australian Perspective
Publisher: Informa UK Limited
Date: 07-1992
Metal-in-metal localized surface plasmon resonance
Publisher: IOP Publishing
Date: 30-11-2009
DOI: 10.1088/0957-4484/21/1/015203
Abstract: Anomalous strong resonances in silver and gold nanoporous thin films which conduct are found to arise from isolated metal nano-islands separated from the surrounding percolating metal network by a thin loop of insulator. This observed resonant optical response is modelled. The observed peak position is in agreement with the observed average dimensions of the silver core and insulator shell. As the insulating ring thickness shrinks, the resonance moves to longer wavelengths and strengthens. This structure is the Babinet's principle counterpart of dielectric core-metal shell nanoparticles embedded in dielectric. Like for the latter, tuning of resonant absorption is possible, but here the matrix reflects rather than transmits, and tuning to longer wavelengths is more practical. A new class of metal mirror occurring as a single thin layer is identified using the same resonances in dense metal mirrors. Narrow band deep localized dips in reflectance result.
Metal nanoparticle plasmonics inside reflecting metal films
Publisher: AIP Publishing
Date: 14-06-2010
DOI: 10.1063/1.3455331
Abstract: Oxide coated metal nanoparticles buried within a thin metal layer support a surface plasmon resonance. A local dip occurs in spectral reflectance along with a switching off of the film’s plasmonic response. Models are introduced in which these resonances are tunable by altering the ratio of oxide thickness to core particle radius. The optical response of two experimental ex les is presented and modeled using effective medium theory. Beyond the resonance zone the doped layer switches back to the plasmonic response of a nanoporous version of the host metal whose effective plasma frequency arises only from the percolating component.
Vagov, Radchik, and Smith reply [2]
Publisher: American Physical Society (APS)
Date: 04-12-1995
Effective medium theory and angular dispersion of optical constants in films with oblique columnar structure
Publisher: Elsevier BV
Date: 06-1989
Partial coherence and amplified internal energy when thermal radiation is sourced within matter
Publisher: IOP Publishing
Date: 06-2022
Abstract: Photons excited into ground state modes at finite temperature display partitioning among photon phases, lifetimes and distances travelled since creation. These distributions set the distance from an interface a created photon has some chance of emission. Excited photons have phase velocity set by their mode’s propagation index n which sets mode density then internal energy contribution. All photons that strike an interface obliquely if emitted are refracted, and their exit intensities are irreversible except when weak internal attenuation occurs. Attenuation index k near zero degrees is small, so reversibility is approximate. As temperature rises refraction of exiting photons varies. Total emission remains reversible after transitioning through a nonequilibrium state with no other heat inputs. In equilibrium the densities of excitations that create and annihilate photons are in balance with photon densities, and emissivity dependent on n, k, temperature, and internal incident direction. Exit intensities from pure water and crystalline silica are modelled. They contain strong resonant intensities, and match data accurately. Intrinsic resonances formed within liquids and compounds are due to photon modes hybridising with localized excitations, including molecular oscillations and the anharmonic component of lattice distortions. They explain the many resonant spectral intensities seen in remote sensing. Each hybrid oscillator is a photonic virtual bound state whose energy fluctuates between levels separated by hf. Other features addressed are radiance when solid angle changes at exit, anomalous refraction, thermal recycling of internally reflected photons, fluxes within multilayers, and enhanced internal heat flux from phonon drag by photon density gradients under an external temperature gradient.
Surface composition of solar selective black chrome films as determined by SIMS
Publisher: Elsevier BV
Date: 02-1982
Radiative Heat Pumping from the Earth Using Surface Phonon Resonant Nanoparticles
Publisher: American Chemical Society (ACS)
Date: 07-01-2010
DOI: 10.1021/NL903271D
Abstract: Nanoparticles that have narrow absorption bands that lie entirely within the atmosphere's transparent window from 7.9 to 13 mum can be used to radiatively cool to temperatures that are well below ambient. Heating from incoming atmospheric radiation in the remainder of the Planck radiation spectrum, where the atmosphere is nearly "black", is reduced if the particles are dopants in infrared transmitting polymers, or in transmitting coatings on low emittance substrates. Crystalline SiC nanoparticles stand out with a surface phonon resonance from 10.5 to 13 mum clear of the atmospheric ozone band. Resonant SiO(2) nanoparticles are complementary, absorbing from 8 to 10 mum, which includes atmospheric ozone emissions. Their spectral location has made SiC nanoparticles in space dust a feature in ground-based IR astronomy. Optical properties are presented and subambient cooling performance analyzed for doped polyethylene on aluminum. A mixture of SiC and SiO(2) nanoparticles yields high performance cooling at low cost within a practical cooling rig.
Optical properties and applications to production of plasmonic thin film nanostructures of self-ordered columnar alumina arrays on glass
Publisher: SPIE
Date: 28-12-2005
DOI: 10.1117/12.638126
Normal-mode Decomposition For The Optical Response Of Cylinder Clusters
Publisher: American Physical Society (APS)
Date: 07-1998
Dielectric constants for mixed media
Publisher: IOP Publishing
Date: 11-03-1977
Investigation of angular selective optical properties of silver/titanium oxide cermet thin films
Publisher: Elsevier BV
Date: 11-1998
Optimisation of a three-colour luminescent solar concentrator daylighting system
Publisher: Elsevier BV
Date: 10-2004
Plasmonic response in nanoporous metal: dependence on network topology
Publisher: SPIE
Date: 22-12-2015
DOI: 10.1117/12.2202278
Materials and systems for efficient lighting and delivery of daylight
Publisher: Elsevier BV
Date: 10-2004
Angle-dependent light scattering in materials with controlled diffuse solar optical properties
Publisher: Elsevier BV
Date: 10-2004
Very thin gold films produced with ion plating for improved transparent infrared reflectors
Publisher: AIP Publishing
Date: 15-04-1985
DOI: 10.1063/1.95485
Abstract: Semitransparent gold films under 10 nm thick were produced with ion plating onto glass and were shown to give improvements, depending on thickness, for either solar control or transparent heat-mirror applications relative to conventional deposits. Film inhomogeneities, modified gold optical constants, and ion-beam assisted onset of film coalescence all play an important role. An anomalously large frequency dependence of conduction electron relaxation time was identified in a continuous film from a Drude analysis.
Simple computer-controlled potentiostat for the characterization of electrochromic films
Publisher: AIP Publishing
Date: 04-1992
DOI: 10.1063/1.1143795
Abstract: We describe a simple and inexpensive potentiostat, incorporating current boosting and filtering circuitry for use in the study of coloration and bleaching in electrochromic thin films. The system is sufficiently flexible to permit utilization in other electrochemical applications.
Functional Metamaterials Based on Mesoscale Gold Sponges, Particulate Aggregates, and Their Composites with Dielectric Materials
Publisher: Springer Science and Business Media LLC
Date: 2006
Abstract: The optical properties of some nanoscale composites may deviate from that expected from a simple law of mixture of their in idual components. In these cases the resulting structure can be considered to be a type of “metamaterial”. Here we explore some of the possibilities for nanoscale composite structures comprised of gold and VO 2 – the latter being a functional material that undergoes a reversible insulator to metallic phase transition at 68°C. Two microstructures are examined: aggregates of gold nanoparticles surrounded by VO 2 as the continuous phase, and its geometric inverse, mesoporous gold sponge with discontinuous VO 2 inclusions. A composite, right-angled parallelepiped measuring 40×100×100 nm is taken as representative of the mixture, and calculations of the optical properties performed using the discrete dipole approximation code of Draine and Flatau. The VO 2 matrix strongly attenuates the dipole-dipole plasmon resonance of the gold structure, and thermochromic switching of the remaining plasmon resonance occurs
Effective optical constants of nanostructured thin silver films and impact of an insulator coating
Publisher: Elsevier BV
Date: 08-2005
Depth profiles of hydrogen and oxygen in hydrogenated amorphous silicon thin films
Publisher: Elsevier BV
Date: 04-1986
Angular selective thin film glazing
Publisher: Elsevier BV
Date: 09-1998
The consistent application of Maxwell–Garnett effective medium theory to anisotropic composites
Publisher: AIP Publishing
Date: 28-04-1997
DOI: 10.1063/1.118821
Abstract: The Maxwell–Garnett class of effective medium model applies if a representative cell can be found whose polarization vanishes upon insertion in the effective medium. For an anisotropic composite with randomly distributed ellipsoidal particles aligned along the principal axis, this leads to electrostatic restraints on the shape of such cells. It is shown that the cell boundary must have different depolarization factors to the inclusion within the cell. Practice is to equate them. A new physically correct ellipsometric modeling routine still with only two fitting parameters is demonstrated.
Super-cool paints: optimizing composition with a modified four-flux model
Publisher: SPIE
Date: 06-09-2017
DOI: 10.1117/12.2273548
Angular-selective optical properties of Cr films made by oblique-angle evaporation
Publisher: AIP Publishing
Date: 13-03-1989
DOI: 10.1063/1.100757
Abstract: Thin Cr films were made by oblique-angle evaporation onto glass. Electron microscopy showed an inclined columnar microstructure. Spectrophotometry yielded a strongly angular-selective p-polarized transmittance, consistent with recent theoretical notions, of potential interest for energy-efficient windows.
Green nanophotonics
Publisher: SPIE-Intl Soc Optical Eng
Date: 10-05-2012
New transform techniques applied to anomolous absorption in the dense chain of metal cylinders
Publisher: The Royal Society
Date: 31-12-1996
Calorimetric emissivities for solar-selective coatings on flat sheet
Publisher: IOP Publishing
Date: 09-1979
Lighting simulations using smoothed LED profiles compared with measured profiles
Publisher: SPIE
Date: 31-08-2006
DOI: 10.1117/12.680246
Near infra-red radiation squeezing through 20 nm voids in obliquely deposited metal films
Publisher: AIP Publishing
Date: 09-04-2001
DOI: 10.1063/1.1359489
Abstract: Obliquely deposited metal films which are nearly continuous, displaying several unexpected solar optical properties. Transmittance intensity, spectral character, preferred direction of incidence, and polarization sensitivity, infer processes which effective-medium models based solely on “interior” properties cannot describe. Amplified transmittance through voids around 20 nm wide involving near surface excitations can explain the data.
Optical properties of chemically ordered a-Si1−xCx:H alloys
Publisher: AIP Publishing
Date: 15-02-1989
DOI: 10.1063/1.342940
Abstract: The optical properties (n,k,ε,neff) of chemically ordered a-Si1−xCx:H alloys have been measured and then analyzed with the effective-medium theory. Included is the first experimental result for an amorphous binary semiconductor that is known to be almost fully chemically ordered, and represented by the formula a-SiC0.64:H. Chemical order is induced by heavy dilution of the plasma with hydrogen. Chemical ordering shifts absorption to shorter wavelengths. Analysis using a scaling theory to define optical constants of different tetrahedron components leads to serious errors in the a-Si1−xCx:H series.
Amine accumulation in behavioural pathology
Publisher: Elsevier BV
Date: 06-1985
DOI: 10.1016/0165-0173(85)90009-8
Abstract: When nigro-striatal and meso-cortical neurons degenerate there is a loss of dopamine in the terminal fields and an accumulation of amines in the axons of these systems as they traverse the hypothalamus through the medial forebrain bundle. Traditional lines of thought have attributed the occurrence of motor and consummatory deficits which occur after dopamine neuron degeneration to the loss of functional dopamine neurotransmitter in the terminal fields. However, we have hypothesized that hypothalamic amine accumulation represents an area of brain tissue where processes such as neurotransmitter release, ephaptic transmission or local axon swelling may be affecting adjacent neurons and may thereby participate in the production of behavioural deficits. There is a considerable amount of evidence from studies on both peripheral and central catecholamine-containing neurons indicating that when their axons degenerate a release of functional neurotransmitter can occur. Information from neuropharmacological studies indicates that several drugs which facilitate behavioural recovery from dopamine-depleting lesions may do so by affecting amine release or receptor sensitivity near areas of accumulation rather than depleted terminal fields. We conclude that amine accumulation is a component of dopamine neuron degeneration which should be considered when assessing the role of the central catecholamine systems in the control of various behavioural and physiological processes.
Analysis of carbon content and distribution in a-Si1−xCx:H films by resonant scattering
Publisher: Elsevier BV
Date: 04-1986
Photoresponse in amorphous semiconductors as dark conductivity varies
Publisher: AIP Publishing
Date: 15-10-1987
DOI: 10.1063/1.339300
Abstract: The variations in conductivity, under illumination of amorphous semiconductors, is examined as a function of the dark Fermi level (EF) using a simple, generally accurate approach which eliminates the need for a complete numerical solution of equations covering generation, recombination, and trapping. The enhanced photoconduction on doping is readily quantified along with the reduced photosensitivity (total to dark conductivity ratio). Various models can be more readily assessed. Predictions are examined in detail for the often used exponential gap state model. The associated Rose model result for the intensity dependence is seen to be an asymptotic limit which becomes less applicable as dark conductivity increases. Temperature dependence is also examined. Emphasis is on doping, but contrasts are also drawn between the effects of a homogeneous and inhomogeneous shift in dark activation energy. The reduction in the exponent γ for the intensity dependence is far more pronounced when external fields modify the dark conductivity.
Photodesorption studies of CO and CO2 from the solar absorber black chrome
Publisher: American Vacuum Society
Date: 03-1981
DOI: 10.1116/1.570790
Abstract: Photodesorption of CO and CO2 has been studied on black chrome solar absorbing coatings. It is shown that the desorption is a quantum effect with possible basis in the photo-hole model applicable to semiconductor surfaces, but with yields similar to that reported for photodesorption from metals.
Hotspots in cylindrical mirror light pipes: description and removal
Publisher: SAGE Publications
Date: 03-2006
DOI: 10.1191/1365782806LI151OA
Abstract: The transmittance and irradiance distribution at the exit aperture of a cylindrical mirror light pipe (MLP) have been measured and calculated for the cases of collimated and diffuse inputs. MLPs are an ex le of a nonimaging optical system that can concentrate light, which may give rise to problematic hotspots and glare either on any diffuser used at the exit aperture or in the illuminated room. It is shown in this work that use of a diffuser at the entrance aperture overcomes these problems without a marked reduction in transmission of a typical MLP.
Noble-metal-based transparent infrared reflectors: Experiments and theoretical analyses for very thin gold films
Publisher: AIP Publishing
Date: 15-01-1986
DOI: 10.1063/1.336615
Abstract: Very thin gold films were prepared on glass by ion plating (IP) and by conventional evaporation (CE). Below a certain thickness—∼9 nm for IP and ∼15 nm for CE—the films comprised a metal network above this thickness we found uniform films. Optical properties were recorded by spectrophotometry. Conspicuous near-infrared transmittance plateaus were seen in network films. This effect is conducive to high solar transmission. The spectral features were explained from effective medium theories based on the film structure. The uniform films were consistent with the Drude theory, provided that an anomalously large frequency dependence of the relaxation energy was invoked. Significant induced transmission was found in calculations on dielectric/gold/dielectric coatings. Our results lead to improved noble-metal-based transparent infrared reflectors for potential use on energy efficient windows.
Temperature dependence of optical and transport properties in VO2 with high temperature anomalies
Publisher: Elsevier BV
Date: 05-2008
High temperature optically stable spectrally-selective Ti1xAlxN-based multilayer coating for concentrated solar thermal applications
Publisher: Elsevier BV
Date: 09-2019
Amorphous silicon solar cells produced by a DC magnetron glow discharge technique
Publisher: Elsevier BV
Date: 05-1985
Spectral switching of the preferred transmission direction in absorbing anisotropic composites
Publisher: IOP Publishing
Date: 14-12-1995
Rectangular-section mirror light pipes
Publisher: Elsevier BV
Date: 08-2008
Perylene dye photodegradation due to ketones and singlet oxygen
Publisher: Elsevier BV
Date: 2010
‘‘Invisibility’’ in certain intersecting particles and arrays of such particles in a solid host
Publisher: AIP Publishing
Date: 03-1996
DOI: 10.1063/1.361131
Abstract: Theoretical results recently obtained for polarizability of intersecting spherical particles have been compared with those for polarizability of intersecting cardioidal particles resembling the spherical shape. Calculations based on a modified Parseval Rule have been performed for a number of metals in a dielectric matrix in a quasistatic approximation. A large difference in the polarizabilities has been found in spite of a striking similarity in their shapes. An unexpected small value for both the real and the imaginary part of the polarizability of cardioidal shaped metal particles occurs at wavelengths where simple metal spheres absorb strongly. A Maxwell-Garnett model has been used to compare the optical properties of composite materials containing the cardioidal and intersecting spherical particles of interest. It has been found that a composite containing cardioid shaped particles in a dielectric matrix can have an unusual response. Its absorption is very close to zero, while the refractive index is close to that of the fully dense host.
Tuning plasma frequency for improved solar control glazing using mesoporous nanostructures
Publisher: SPIE
Date: 21-04-2006
DOI: 10.1117/12.661198
Large Refractive Index And Interparticle-interaction-induced Nonlinear Modulation In Densely Doped Composite Materials
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 1998
DOI: 10.1109/3.704325
TiN x films with metallic behavior at high N/Ti ratios for better solar control windows
Publisher: AIP Publishing
Date: 02-08-1999
DOI: 10.1063/1.124463
Abstract: Using cathodic arc deposition with 700 eV nitrogen ion assistance, metallic response in TiNx thin films to at least N/Ti=1.3 is found. Metallic behavior is usually limited to N/Ti ratios just above 1.1. Defects are almost exclusively Ti vacancies which further enhances optical changes. The resulting large shift in onset of Drude reflection to longer wavelengths enhances the view, daylighting, and environmental performance of a coated window relative to stoichiometric TiN films on glass.
Radiative cooling: Energy savings from the sky
Publisher: Springer Science and Business Media LLC
Date: 04-09-2017
Optical anisotropy due to perpendicular azimuth serial bideposition
Publisher: SPIE
Date: 30-08-2017
DOI: 10.1117/12.2273528
Electrochromism in sol-gel deposited TiO2 films
Publisher: SPIE
Date: 09-09-1994
DOI: 10.1117/12.185374
Optimized cool roofs: Integrating albedo and thermal emittance with R-value
Publisher: Elsevier BV
Date: 12-2011
Optical response in nanostructured thin metal films with dielectric over-layers
Publisher: Elsevier BV
Date: 12-2004
A Subambient Open Roof Surface under the Mid-Summer Sun
Publisher: Wiley
Date: 26-05-2015
The relative merits of black cobalt and black chrome as high temperature selective absorbers
Publisher: Elsevier BV
Date: 07-1980
Optimized infra-red spectral response of surfaces for sub-ambient sky cooling as a function of humidity and operating temperature
Publisher: SPIE
Date: 30-04-2010
DOI: 10.1117/12.853218
<title>Low-emittance angular selective window systems</title>
Publisher: SPIE
Date: 23-08-1995
DOI: 10.1117/12.217340
Simplified BRDF of a Non-Lambertian Diffuse Surface
Publisher: SAGE Publications
Date: 09-2007
Abstract: For real diffuse surfaces, the bi-directional reflectance distribution function (BRDF) is non-Lambertian, and may require a more complex model in ray tracing simulations. The BRDF of a diffuse white surface is studied at multiple angles of incidence, and an additional reflectance component is observed, which becomes more specular as the angle of incidence increases. For angles of incidence °, the BRDF may be regarded as specular. In this article, a two-part model is proposed in which the BRDF of a diffuse surface consists of a Lambertian diffuse component and a Lorentzian pseudo-specular component — both of which vary with angle of incidence. This model may be used to reduce computation times for ray tracing simulations, as an alternative to large three-dimensional BRDF datasets.
Proceedings of SPIE - The International Society of Optical Engineering: Introduction
Publisher: SPIE
Date: 13-09-2007
DOI: 10.1117/12.772786
Steady-state photoconductivity in a-Si:H prepared by d.c. magnetron methods
Publisher: Informa UK Limited
Date: 10-1986
Nanoscale coatings of AuAlx and PtAlx and their mesoporous elemental derivatives
Publisher: Elsevier BV
Date: 06-2006
Frequency and percolation dependence of the observed phase transition in nanostructured and doped VO<sub>2</sub> thin films
Publisher: SPIE-Intl Soc Optical Eng
Date: 2009
DOI: 10.1117/1.3079405
Electron energy-loss study of bonding in amorphous silicon-carbon alloy films prepared with hydrogen dilution
Publisher: AIP Publishing
Date: 05-12-1988
DOI: 10.1063/1.100254
Abstract: Electron energy-loss spectroscopy was used to study the nature of chemical bonding in a-Si1−xCx:H films produced by rf glow discharge decomposition of SiH4/CH4 mixtures with hydrogen dilution. The low-loss region, the Si L edge, and the C K edge were studied. It was found that near stoichiometric films have a high degree of Si to C bonding and that substoichiometric films show some C to C sp2 bonding. A free-electron model was used to interpret the variation of plasmon energy of these films with composition.
Refinement of solar absorbing black chrome microstructure and its relationship to optical degradation mechanisms
Publisher: AIP Publishing
Date: 10-1980
DOI: 10.1063/1.327475
Abstract: An in depth characterization of the electrodeposited solar absorber black chrome resulting in refinement of the microstructural model of the coating is presented in light of current studies in valence band Auger electron spectroscopy, x-ray photoelectron spectroscopy, thermal desorption spectroscopy, secondary ion mass spectroscopy, and the chromium electrodeposition mechanism. Through the presented model, the structural and chemical parameters of the coating are linked to its optical response with the degradation of the optical response at elevated temperatures related to changes in these parameters. The degradation process is ided into two distinct phases. First, upon heating to low temperatures (≲300 °C) the chromium hydroxide localized on the surface and within the microstructure of the film decomposes producing H2O and chromium oxide leaving an expected microvoid-metallic particle structure. Heating to temperatures in excess of 300 °C leads to the second degradation phase. The fine chromium crystallites comprising the film undergo oxidation and the metallic chromium component, responsible for the intrinsic optical absorption, is diminished. The optical model of the solar absorbing film has been refined within the effective medium approach to account for the flat response in the visible part of the spectrum.
Properties of powders deposited by silane/hydrogen and silane/methane plasmas
Publisher: Elsevier BV
Date: 06-1989
Depth profiles and microtopology
Publisher: Elsevier BV
Date: 12-1983
Normal mode analysis of optical polarisation response in nanocomposite particles
Publisher: Elsevier BV
Date: 1999
Using tumour pathology to identify people at high genetic risk of breast and colorectal cancers
Publisher: Elsevier BV
Date: 02-2012
<title>Novel high-performance scattering materials for use in energy-saving light fittings and skylights based on polymer pigmented with polymer</title>
Publisher: SPIE
Date: 13-11-2001
DOI: 10.1117/12.448254
Monte Carlo ray-tracing in particle-doped light guides
Publisher: SAGE Publications
Date: 06-2006
DOI: 10.1191/1365782806LI162OA
Abstract: A general Monte Carlo ray-tracing method for light guides with particles randomly dispersed in a matrix material is presented. Previous ray-tracing approaches have been designed for undoped cylindrical light guides, where a propagating ray is deviated by total internal reflection only. These geometrical principles are extended and further developed into a method of ray-tracing suitable for particle-doped systems. Redefining ray direction after deviation by a particle, obtaining ray/wall intercept points and angles, and calculation of ray reflection angles from a cylindrical surface are described. Simulations of light from a source LED traced through TRIMM-doped (Transparent Refractive Index Matched Micro-Particle) polymethyl methacrylate (PMMA) light guides have been performed. Distributions of the light exiting the walls of two concentrations of TRIMM-doped light guides are given, as an ex le of an application of the described ray-tracing method.
Thin film angular selective glazing
Publisher: Elsevier BV
Date: 03-1998
Optical properties of a pair of spheres: comparison of different theories
Publisher: Elsevier BV
Date: 03-1995
Comparisons of enhanced absorption in closely-coupled grating-mirror and random particle-mirror systems
Publisher: SPIE
Date: 20-08-2009
DOI: 10.1117/12.828125
Phase slippage in a magnetic field at intra- and intergranular Josephson junctions in high-Tc superconductors
Publisher: Elsevier BV
Date: 09-1990
<title>Optimization of the electrical and optical properties of ITO layers deposited by magnetron sputtering</title>
Publisher: SPIE
Date: 22-10-1993
DOI: 10.1117/12.161983
Black chromium-molybdenum: A new stable solar absorber
Publisher: Elsevier BV
Date: 1981
<title>Fine tuning the spectral response of metal insulator composites for specific solar applications</title>
Publisher: SPIE
Date: 22-10-1993
DOI: 10.1117/12.161982
Ion trajectories in exactly determined quadrupole fields
Publisher: Elsevier BV
Date: 05-1996
<title>Anomalous optical scattering from intersecting fine particles</title>
Publisher: SPIE
Date: 09-1995
DOI: 10.1117/12.218324
Surface structure and the optical properties of black chrome
Publisher: Springer Science and Business Media LLC
Date: 04-1985
DOI: 10.1007/BF00616552
Commentary: Environmental nanophotonics and energy
Publisher: SPIE-Intl Soc Optical Eng
Date: 2011
DOI: 10.1117/1.3549225
Multi-parameter sensitivity analysis: A design methodology applied to energy efficiency in temperate climate houses
Publisher: Elsevier BV
Date: 12-2012
Noble-metal-based transparent infrared-reflectors
Publisher: Elsevier BV
Date: 11-1986
The scope of effective medium theory for fine metal particle solar absorbers
Publisher: AIP Publishing
Date: 11-1979
DOI: 10.1063/1.91249
Abstract: The treatment of an array of small metal particles as a continuous effective medium is shown to be possible for visible and near infrared frequencies at much larger particle sizes and separations than often supposed. Specific upper limits are evaluated for chromium. Results are based on the strongly correlated model. For this, the usual topology, variation, and attenuation of the field strength over average unit cell dimensions are permissible, provided such variations are characteristic of the effective medium as a whole. As wavelength decreases, the leading contribution to diffuse scattering off such composite films should come from terms proportional to λ−8 not the Rayleigh term.
Cylindrical mirror light pipes
Publisher: Elsevier BV
Date: 02-1995
Nanoparticle-doped polymer foils for use in solar control glazing
Publisher: Springer Science and Business Media LLC
Date: 2002
<title>Plasmon-mediated visible and near-infrared transmission through sub-30-nm holes in metal films: potential in solar energy applications</title>
Publisher: SPIE
Date: 13-11-2001
DOI: 10.1117/12.448263
An introduction and overview of two studies of substrate influence on selective absorber structure and stability
Publisher: Elsevier BV
Date: 05-1983
Modes of interaction between nanostructured metal and a conducting mirror as a function of separation and incident polarization
Publisher: SPIE
Date: 19-09-2013
DOI: 10.1117/12.2022794
The Polarisability of Cylinder Arrays in Two Dimensions
Publisher: Elsevier BV
Date: 08-1995
Electron-diffraction study of chemical ordering in glow-dischargea-
Publisher:
American Physical Society (APS)
Date:
15-05-1988
Publisher: American Physical Society (APS)
Date: 15-05-1988
High resolution studies of columnar growth in obliquely deposited metal films on glass
Publisher: Elsevier BV
Date: 06-1989
Homogenized Lorentz–Drude optical response in highly nanoporous conducting gold layers produced by de-alloying
Publisher: Elsevier BV
Date: 03-2007
Optical properties of mesoporous gold films
Publisher: IOP Publishing
Date: 27-05-2005
Constitutional methylation of the BRCA1 promoter is specifically associated with BRCA1 mutation-associated pathology in early-onset breast cancer
Publisher: American Association for Cancer Research (AACR)
Date: 2011
DOI: 10.1158/1940-6207.CAPR-10-0212
Abstract: Women carrying germline mutations in BRCA1 are at a substantially elevated risk of breast cancer and their tumors typically have distinctive morphologic features. We hypothesized that constitutional methylation of the BRCA1 promoter region could give rise to such breast cancers in women. We selected 255 women diagnosed with breast cancer before the age of 40 years for whom BRCA1 germline mutations had not been identified. Of them, 52 had five or more of nine BRCA1 mutation-associated morphologic features (group 1), 39 had four (group 2), and 164 had three or less (group 3). The prevalence of detectable BRCA1 promoter methylation in peripheral blood DNA decreased from 31% to 10% to 5% across groups 1–3, respectively (P = 0.000002), and was significantly greater than the 4% frequency in unaffected controls (P = 0.004). Peripheral blood methylation was associated with a 3.5-fold (95% CI, 1.4–10.5) increased risk of having early onset breast cancer. Methylation was consistently mosaic in the peripheral blood where the estimated allelic frequency of BRCA1 promoter methylation ranged from 0.1% to 17%. Group 1 women, but not group 3 women, with detectable methylation of peripheral blood DNA had high levels of BRCA1 promoter methylation of their tumor DNA, indicating that constitutional BRCA1 methylation strongly predisposes toward the development of BRCA1 methylated tumors that then have features resembling BRCA1 mutated tumors. Screening peripheral blood for BRCA1 promoter methylation might thus predict early-onset breast cancers. This raises the possibility of chemoprevention or other intervention to diminish the risk of developing breast cancer in these women. Cancer Prev Res 4(1) 23–33. ©2010 AACR. Cancer Prev Res 4(1) 23–33. ©2010 AACR.
Quasi-static Optical-response Of Separate, Touching, And Intersecting Cylinder Pairs
Publisher: American Physical Society (APS)
Date: 09-1992
Absorption tails and extinction in luminescent solar concentrators
Publisher: Elsevier BV
Date: 04-2011
s-d exchange integrals obtained from experiment in Cu:Mn, Ag:Mn, and Au:Mn
Publisher: American Physical Society (APS)
Date: 07-1971
New effective medium models and their applications
Publisher: Elsevier BV
Date: 08-1995
The substrate impact on the structure and thermal stability of solar selective black chrome
Publisher: Elsevier BV
Date: 05-1983
Columnar cermet structures in solar energy materials: Can one model spectral response with simple effective medium theories
Publisher: Elsevier BV
Date: 07-1998
Design, control, and characterisation of switchable radiative cooling
Publisher: SPIE
Date: 17-09-2018
DOI: 10.1117/12.2323877
Effect of Temperature on the Surface Tension of Soluble and Insoluble Surfactants of Hydrodynamical Importance
Publisher: American Chemical Society (ACS)
Date: 08-07-2005
DOI: 10.1021/JE050074W
A critical hurdle to widespread use of polymer based luminescent solar concentrators
Publisher: SPIE
Date: 24-09-2013
DOI: 10.1117/12.2022802
Optical properties of refractory TiN, AlN and (Ti,Al)N coatings
Publisher: SPIE
Date: 22-12-2015
DOI: 10.1117/12.2202403
Spectral and global diffuse properties of high-performance translucent polymer sheets for energy efficient lighting and skylights
Publisher: The Optical Society
Date: 07-2003
DOI: 10.1364/AO.42.003981
Abstract: A visible and near-IR spectral study is presented for a translucent smooth polymer sheet in which dopant particles are clear polymer with a refractive index close to that of the clear polymer host. Diffuse, specular, and total reflectance and transmittance and absorptance as a function of sheet thickness and dopant levels approach ideal behavior for lighting applications. A fourth optical parameter, side loss S(T), is introduced to fully account for the measured data. This covers radiation that is trapped by total internal reflection (TIR) and travels sideways sufficiently far, including to the sheet's edges, to miss detection on exit. S(T) has a strong spectral character, whereas total T and R spectra closely follow the spectrally flat wavelength dependence of the undoped clear sheet. Three distinct regimes are identified for the behavior with wavelength of the specular and diffuse components and are linked to rear surface TIR and side loss.
Profiling of hydrogen in a-Si:H by the reaction
Publisher: Elsevier BV
Date: 05-1985
Cathodic arc ablation as a new method of high-Tc superconductor deposition
Publisher: Elsevier BV
Date: 07-1992
Polarization of intersecting particles
Publisher: AIP Publishing
Date: 06-06-1994
DOI: 10.1063/1.111334
Abstract: An exact expression for the polarizability of intersecting circular cylinders has been derived covering all degrees of intersection and arbitrary complex dielectric constants for the particle material. This enables a comparison between the induced dipole moment on two particles of almost identical shape a cardioid and a particular pair of overlapping cylinders. The absorption spectra in the small particle limit are extremely sensitive to the detailed shape of the surfaces near the point of intersection.
The mechanical and structural properties of Ti films prepared by filtered arc deposition
Publisher: Elsevier BV
Date: 10-1996
Field profiles for spherical conductive nanoparticles and metallic-shell/dielectric-core nanocomposites
Publisher: SPIE
Date: 02-08-2004
DOI: 10.1117/12.555953
<title>Blood Flow Assessment With Magnetic Resonance Imaging</title>
Publisher: SPIE
Date: 1987
DOI: 10.1117/12.966979
Surface reflectance and conversion efficiency dependence of technologies for mitigating global warming
Publisher: Elsevier BV
Date: 05-2011
Noble-metal-based transparent infrared-reflectors : Preparation and analysis of thin gold films.
Publisher: SPIE
Date: 02-12-1985
DOI: 10.1117/12.966295
Spectrally Selective Solar Absorbers based on Ta:SiO 2 Cermets for Next‐Generation Concentrated Solar–Thermal Applications
Publisher: Wiley
Date: 27-05-2020
Magnetization of nearly magnetic dilute alloys
Publisher: IOP Publishing
Date: 05-1972
Metal-insulator nanocomposites which act optically like homogeneous conductors
Publisher: SPIE-Intl Soc Optical Eng
Date: 02-2007
DOI: 10.1117/1.2711706
Polarization and resonant absorption in intersecting cylinders and spheres
Publisher: AIP Publishing
Date: 15-10-1994
DOI: 10.1063/1.357256
Abstract: The polarization of a pair of merging spheres and merging cylinders of any complex dielectric constant immersed in an external electric field has been solved. Any degree of intersection, including touching, is covered by the result. The method for cylinders is based on the solution of Laplace’s equation with boundary conditions on the conjugate surfaces in a modified bicylindrical frame. The result is presented as an integral over a continuum of eigenstates. For merging spherical particles solving the boundary problem requires a Miller–Fok integral transformation. Imaginary parts of polarizabilities were calculated for aluminum cylinders and spheres to assess the spectral absorption response of small merging particles. The relative spacing has a significant influence on optical response.
Maximising the light output of a Luminescent Solar Concentrator
Publisher: Elsevier BV
Date: 2004
Daylighting enhancement with light pipes coupled to laser-cut light-deflecting panels
Publisher: SAGE Publications
Date: 03-1995
Active control of the optical properties of nanoscale coatings using 'smart' nanoparticles
Publisher: SPIE
Date: 13-09-2007
DOI: 10.1117/12.739251
Frequency and percolation dependence of the observed phase transition in nanostructured and doped VO 2 thin films
Publisher: SPIE
Date: 28-08-2008
DOI: 10.1117/12.792207
An immersion coated molybdenum based selective absorber
Publisher: Elsevier BV
Date: 1984
The unusual and useful optical properties of electrodeposited chrome-black films
Publisher: IOP Publishing
Date: 11-09-1977
The high temperature properties of transition metal alloys
Publisher: IOP Publishing
Date: 05-1970
Five layer narrow band position variable filters for sharp colours and ultra low emittance
Publisher: Springer Science and Business Media LLC
Date: 07-06-2008
The insulator to correlated metal phase transition in molybdenum oxides
Publisher: AIP Publishing
Date: 29-07-2013
DOI: 10.1063/1.4817588
Abstract: In sub-stoichiometric MoO3, electrical and optical responses across the solar spectrum are tunable and manifest a sharp phase transition in thin films at a specific oxygen content. Models of optical response in insulating and conducting regimes have been developed. Oxygen vacancies induce semiconducting response exactly proportional to the observed concentration of gap d-states until the transition. Ionization potential is thus tunable. Metallic thin films are never plasmonic at any stoichiometry and their conductivity, Hall mobility, carrier density, and plasma frequency are consistent, but either loss rate or effective mass mean metallic conduction is correlated rather than classical.
Erratum: Quasistatic optical response of separate, touching, and intersecting cylinder pairs
Publisher: American Physical Society (APS)
Date: 02-1993
High Temperature Spectrally Selective Solar Absorbers Using Plasmonic AuAl 2 :AlN Nanoparticle Composites
Publisher: Wiley
Date: 07-09-2017
Bulk and surface plasmons in highly nanoporous gold films
Publisher: IOP Publishing
Date: 30-08-2007
The preparation of a plasmonically resonant VO2thermochromic pigment
Publisher: IOP Publishing
Date: 03-02-2009
DOI: 10.1088/0957-4484/20/8/085607
Abstract: Vanadium dioxide (VO(2)) undergoes a reversible metal-insulator transition, normally at approximately 68 degrees C. While the properties of continuous semi-transparent coatings of VO(2) are well known, there is far less information available concerning the potential use of discrete VO(2) nanoparticles as a thermochromic pigment in opaque coatings. In idual VO(2) nanoparticles undergo a localized plasmon resonance with near-infrared light at about 1100 nm and this resonance can be switched on and off by simply varying the temperature of the system. Therefore, incorporation of VO(2) nanoparticles into a coating system imbues the coating with the ability to self-adaptively modulate its own absorptive efficiency in the near-infrared. Here we examine the magnitude and control of this phenomenon. Prototype coatings are described, made using VO(2) powder produced by an improved process. The materials are characterized using calorimetry, x-ray diffraction, high-resolution scanning electron microscopy, transmission electron microscopy, and by measurement of optical properties.
Guest Editorial: Nanostructured Thin Films
Publisher: SPIE-Intl Soc Optical Eng
Date: 02-2009
DOI: 10.1117/1.3086489
Coupled multipolar interactions in clusters of nanoparticles with metal shells
Publisher: Elsevier BV
Date: 10-2002
Double Effective Medium Model for the Optical Properties of Self-Assembled Gold Nanoparticle Films Cross-Linked with Alkane Dithiols
Publisher: American Chemical Society (ACS)
Date: 20-12-2003
DOI: 10.1021/NL034948D
Plasma deposition of tribological and optical thin film materials with a filtered cathodic arc source
Publisher: Elsevier BV
Date: 02-1999
Exact fields in multi‐electrode ion optics
Publisher: Wiley
Date: 12-1994
Is enhanced radiative cooling of solar cell modules worth pursuing?
Publisher: Elsevier BV
Date: 06-2016
New effective medium approach to optical response in non-random arrays
Publisher: Elsevier BV
Date: 04-1998
<title>Light-to-light efficiencies in luminescent solar concentrators</title>
Publisher: SPIE
Date: 11-10-1999
DOI: 10.1117/12.367563
Spatial variations in the stoichiometry of sputtered YBaCuO thin films: theory and experiment
Publisher: Elsevier BV
Date: 10-1990
<title>Assessment of electrochromic devices based on sol-gel deposited films</title>
Publisher: SPIE
Date: 22-10-1993
DOI: 10.1117/12.161953
<title>Production of angular-selective films by interdiffusion for novel spectral responses</title>
Publisher: SPIE
Date: 11-10-1999
DOI: 10.1117/12.367564
A new transient temperature emissometer
Publisher: Elsevier BV
Date: 12-1980
Color considerations in fluorescent solar concentrator stacks
Publisher: The Optical Society
Date: 09-2003
DOI: 10.1364/AO.42.005112
Abstract: We present modeled results of the luminous and color outputs of a three-layer stack of fluorescent planar concentrators (FPCs). FPCs have the potential to provide sufficient luminous output to illuminate moderate-sized rooms for reasonably-sized collecting areas. It is of course necessary not only that the lumens be sufficient, but also that the light be sufficiently white as to be comfortable. Modeling shows that by use of a stack of three FPCs, one each of violet, green, and red, it is possible to achieve good color rendering and sufficient lighting levels for room illumination.
Ranking solar absorber structural parameters in terms of impact on performance and stability
Publisher: Elsevier BV
Date: 10-1983
High flux photochemical changes in Black Chrome solar absorbing coatings
Publisher: Elsevier BV
Date: 1982
Evaluation of the limits of resonance tunability in metallic nanoshells with a spectral averaging method
Publisher: The Optical Society
Date: 07-2005
Abstract: Spectral selectivity based on tuning the surface plasmon resonance in metallic nanoshells by variation of the relative shell thickness is shown to be limited by the interplay between scattering and absorption. To achieve resonance energies in the near infrared and infrared, relatively large cores are needed, which lead to strong and broad scattering bands and multipolar contributions in the visible. The scattering contribution to extinction is described with a new parameter Sdelta, which is defined for a wavelength range of interest A. This parameter can help in designing materials for specific applications where scattering is either hindering, as in near-infrared absorbers for visually clear windows, or actually desired, such as in particle-array-based sensors.
<title>High Resolution Large Area Modular Array Of Reflectors (LAMAR) Wolter Type I X-Ray Telescope For Spacelab</title>
Publisher: SPIE
Date: 02-1982
DOI: 10.1117/12.965784
Optimized multilayer indium-free electrodes for organic photovoltaics
Publisher: Wiley
Date: 09-10-2014
Temperature, field and grain size dependence of flux pinning in high Tc superconductors
Publisher: Elsevier BV
Date: 09-1989
Amplified radiative cooling via optimised combinations of aperture geometry and spectral emittance profiles of surfaces and the atmosphere
Publisher: Elsevier BV
Date: 09-2009
AZO/Ag/AZO anode for resonant cavity red, blue, and yellow organic light emitting diodes
Publisher: AIP Publishing
Date: 24-06-2016
DOI: 10.1063/1.4954689
Abstract: Indium tin oxide (ITO) is the transparent electrode of choice for organic light-emitting diodes (OLEDs). Replacing ITO for cost and performance reasons is a major drive across optoelectronics. In this work, we show that changing the transparent electrode on red, blue, and yellow OLEDs from ITO to a multilayer buffered aluminium zinc oxide/silver/aluminium zinc oxide (AZO/Ag/AZO) substantially enhances total output intensity, with better control of colour, its constancy, and intensity over the full exit hemisphere. The thin Ag containing layer induces a resonant cavity optical response of the complete device. This is tuned to the emission spectra of the emissive material while minimizing internally trapped light. A complete set of spectral intensity data is presented across the full exit hemisphere for each electrode type and each OLED colour. Emission zone modelling of output spectra at a wide range of exit angles to the normal was in excellent agreement with the experimental data and hence could, in principle, be used to check and adjust production settings. These multilayer transparent electrodes show significant potential for both eliminating indium from OLEDs and spectrally shaping the emission.
Plasmonic heating of gold nanoparticles and its exploitation
Publisher: SPIE
Date: 28-02-2005
DOI: 10.1117/12.582207
Science of daylighting in buildings
Publisher: Elsevier BV
Date: 09-1998
Two-Dimensionally Grown Single-Crystal Silicon Nanosheets with Tunable Visible-Light Emissions
Publisher: American Chemical Society (ACS)
Date: 02-07-2014
DOI: 10.1021/NN501683F
Abstract: Since the discovery of graphene, growth of two-dimensional (2D) nanomaterials has greatly attracted attention. However, spontaneous growth of atomic two-dimensional (2D) materials is limitedly permitted for several layered-structure crystals, such as graphene, MoS2, and h-BN, and otherwise it is notoriously difficult. Here we report the gas-phase 2D growth of silicon (Si), that is cubic in symmetry, via dendritic growth and an interdendritic filling mechanism and to form Si nanosheets (SiNSs) of 1 to 13 nm in thickness. Thin SiNSs show strong thickness-dependent photoluminescence in visible range including red, green, and blue (RGB) emissions with the associated band gap energies ranging from 1.6 to 3.2 eV these emission energies were greater than those from Si quantum dots (SiQDs) of the similar sizes. We also demonstrated that electrically driven white, as well as blue, emission in a conventional organic light-emitting diode (OLED) geometry with the SiNS assembly as the active emitting layers. Tunable light emissions in visible range in our observations suggest practical implications for novel 2D Si nanophotonics.
Internal Electric Field Densities of Metal Nanoshells
Publisher: American Chemical Society (ACS)
Date: 19-01-2005
DOI: 10.1021/JP0450686
Abstract: The internal field patterns for gold shells filled with the same material as the surrounding medium are calculated with Mie theory and in the quasistatic approximation and their properties compared to the response of homogeneous spheres and metallic rings. One major difference between the sphere and shell case is that the areas of highest field enhancement in metallic shells are located perpendicular to the incident polarization, whereas for metallic spheres they are along the polarization direction. Recent results based on the discrete dipole approximation (DDA) are shown to be misleading, which might be due to the use of a too coarse grid size. We also show that the type of resonance and the associated internal field pattern (low or high energy) has a strong impact on the external fields.
Solar selective black cobalt: preparation, structure, and thermal stability
Publisher: AIP Publishing
Date: 08-1980
DOI: 10.1063/1.328276
Abstract: In the quest for an electroplated selective black coating stable to 500 °C in air, black cobalts have been prepared by three techniques to yield (a) plated cobalt sulphides, (b) plated cobalt oxide-hydroxide, and (c) cobalt oxide prepared by thermal oxidation of electropolated cobalt metal. The optical properties of the various coatings are analyzed before and after exposure to air for extended periods of time at temperatures in the 300 °–500 °C range. The sulfide black cobalt is not acceptable as a high-temperature selective absorber due to severe thermal degradation. The plated oxide is a good selective absorber to about 400 °C, and the thermally oxidized black to a slightly higher temperature, but degrades at 500 °C. Structure studies via scanning electron microscopy (SEM), Auger electron spectroscopy (AES), and x-ray photoemission spectroscopy (XPS) are reported which yield a full account of the coating chemistry before and after heating. The studies reveal that the high solar absorptance of the acceptable black cobalt coatings is due to a continuation of a porous outer layer grading into nondense oxides of cobalt either CoO or Co3O4, depending on the film. Absorption is intrinsic but not due to metal particles as in black chrome. A limited amount of optical degradation occurs upon heating the oxide black cobalt in air due to oxidation of hydroxide. However, the major degradation problem is shown to be substrate oxidation in contrast to black chrome where film oxidation is the principal problem.
Angular Selective Window Coatings: Theory And Experiment
Publisher: SPIE
Date: 12-12-1989
DOI: 10.1117/12.962181
Directional and angle-resolved optical scattering of high-performance translucent polymer sheets for energy-efficient lighting and skylights
Publisher: The Optical Society
Date: 10-05-2005
DOI: 10.1364/AO.44.002745
Abstract: Transparent refractive-index matched micro (TRIMM) particles have proved to be an excellent scattering component for use in translucent sheets. Measurements of hemispheric transmittance and reflectance versus angle of incidence, as well as angle-resolved studies of such translucent sheets, have been carried out to complement earlier published hemispheric reflectance and transmittance spectral measurements carried out at normal angle of incidence. Hemispheric values relative to angle of incidence are of interest for daylighting applications and building simulations, and angle-resolved measurements are vital for verifying that our modeling tools are reliable. Ray-tracing simulations based on Mie scattering for the in idual TRIMM particles and angle-resolved measurements are in good agreement, indicating that the simulation method used is practical for the design of new scattering profiles by varying particle concentration or refractive index.
Optical characterisation of materials and systems for daylighting
Publisher: Elsevier BV
Date: 2001
Anomalous voltage-current characteristics in the sputtering of YBaCuO
Publisher: Elsevier BV
Date: 11-1991
Light trapping in translucent samples and its effect on the hemispherical transmittance obtained by an integrating sphere
Publisher: SPIE
Date: 11-11-2003
DOI: 10.1117/12.508196
The effect of a self consistent effective ambient temperature on collector efficiency parameters
Publisher: Elsevier BV
Date: 1979
Structure and properties of electrochromic WO 3 produced by sol-gel methods
Publisher: SPIE
Date: 12-1991
DOI: 10.1117/12.49211
Microstructure and stoichiometry effects in electrochromic sol-gel deposited tungsten oxide films
Publisher: SPIE
Date: 25-11-1992
DOI: 10.1117/12.130545
The importance of surface finish to energy performance
Publisher: EDP Sciences
Date: 2017
DOI: 10.1051/REES/2017047
Experimental and Monte Carlo analysis of isotropic multiple Mie scattering
Publisher: Elsevier BV
Date: 10-2004
Extending the applicability of the four-flux radiative transfer method
Publisher: The Optical Society
Date: 27-10-2017
DOI: 10.1364/AO.56.008699
Angular selectivity: impact on optimised coatings for night sky radiative cooling
Publisher: SPIE
Date: 20-08-2009
DOI: 10.1117/12.825722
<title>Nanostructured thin films: a critical review</title>
Publisher: SPIE
Date: 25-06-2002
DOI: 10.1117/12.472985
An XPS Study Of Chemical Order In Hydrogenated Amorphous-silicon Carbon Alloy-films
Publisher: Wiley
Date: 04-1989
Nanograin VO2in the metal phase: a plasmonic system with falling dc resistivity as temperature rises
Publisher: IOP Publishing
Date: 15-12-2006
Optical and electrical switching in nanostructured coatings of VO 2
Publisher: SPIE
Date: 13-09-2007
DOI: 10.1117/12.733200
An advanced plasmonic cermet solar absorber for high temperature solar energy conversion applications
Publisher: SPIE
Date: 30-08-2017
DOI: 10.1117/12.2273598
Uniform white light distribution with low loss from colored LEDs using polymer-doped polymer mixing rods
Publisher: SPIE
Date: 20-10-2004
DOI: 10.1117/12.556282
3D printable optical structures for sub-ambient sky cooling
Publisher: SPIE
Date: 06-09-2017
DOI: 10.1117/12.2274568
A new type of TiN coating combining broad band visible transparency and solar control
Publisher: Elsevier BV
Date: 2001
A rigorous diffraction theory for the optical properties of black chrome
Publisher: Elsevier BV
Date: 05-1985
Surface and Near Surface Area Density of States for Magnetron-Sputtered ZnO and Al-ZnO: A MIES, UPS, and VBXPS StudyInvestigating Ultrahigh Vacuum Sputter Cleaning and UV Oxygen Plasma
Publisher: American Chemical Society (ACS)
Date: 15-02-2016
Tuning the surface-plasmon resonance in nanoparticles for glazing applications
Publisher: AIP Publishing
Date: 15-06-2005
DOI: 10.1063/1.1924873
Abstract: Issues affecting the performance of polymers doped with conducting nanoparticles for use with windows are examined in terms of impact on visible and solar transmittance, solar heat gain, and residual scattering. Emphasis is on visible transmittance fixed in the range of 30%–75%, combined with maximal blocking of the near-infrared (NIR) component of solar energy in the wavelength range of 750–1300nm. Spectral data and surface-plasmon resonance (SPR) models of absorbance for LaB6 and indium tin oxide nanoparticles embedded in polymer are quite distinct from each other, but both can be used and each material has its advantages and disadvantages. The SPR of LaB6 nanoparticles is very efficient at NIR blocking, as it lies near 1000nm, but as a result its tail overlaps the visible. In contrast the SPR of ITO lies well beyond 1000nm and is thus far less efficient, only relying on its SPR tail. However, this means it only weakly affects the visible. Results of a quasistatic model for the optical properties are presented, along with comparisons to full Mie scattering calculations. It is found that ellipsoidal particles are required to explain the properties of the studied LaB6 particles, and that scattering can be significant in the NIR while weak in the visible. Furthermore, the forward-to-backward-scattering ratio is different for Rayleigh scattering in the visible and scattering near the SPR. The latter is much more isotropic, even for larger particles.
An analysis of Ag/Al2O3 angular selective films by X-ray reflectivity
Publisher: Elsevier BV
Date: 1998
Colour mixing LEDs with short microsphere doped acrylic rods
Publisher: The Optical Society
Date: 2004
Abstract: The output colour distributions from red, green and blue (RGB) LEDs mixed with cross linked PMMA micro particle doped PMMA mixing rods is compared to output from a plain PMMA mixing rod. Distinctive patterns with clear colour separation result with the undoped rod. These are homogenised by our mixers, resulting in white light. Light output has been photographed, measured and computer simulated at a distance of 10 cm from the output end of the rods.
Procedure for measuring simultaneously the solar and visible properties of glazing with complex internal or external structures
Publisher: The Optical Society
Date: 20-10-2014
DOI: 10.1364/AO.53.007157
Coloured paints based on coated flakes of metal as the pigment, for enhanced solar reflectance and cooler interiors: description and theory
Publisher: Elsevier BV
Date: 09-2003
Theory of angular selective transmittance in oblique columnar thin films containing metal and voids
Publisher: The Optical Society
Date: 09-1990
DOI: 10.1364/AO.29.003685
Percolation in nanoporous gold and the principle of universality for two-dimensional to hyperdimensional networks
Publisher: American Physical Society (APS)
Date: 22-10-2008
Cermets for angular selective transmittance
Publisher: Elsevier BV
Date: 1992
Dual metal–insulator and insulator–insulator switching in nanoscale and Al doped VO2
Publisher: IOP Publishing
Date: 17-12-2007
Angular-selective cermet films produced from a magnetically filtered cathodic arc
Publisher: SPIE
Date: 12-1991
DOI: 10.1117/12.49218
Aspects of annealing and free surface crystallization of YBCO thin films
Publisher: Elsevier BV
Date: 10-1990
DC magnetron glow discharge amorphous silicon
Publisher: Elsevier BV
Date: 10-1984
Nanotechnology for Sustainable Manufacturing
Publisher: CRC Press
Date: 18-06-2014
DOI: 10.1201/B17046
Optical response of nanostructured metal/dielectric composites and multilayers
Publisher: SPIE
Date: 02-08-2004
DOI: 10.1117/12.555971
Nanophotonics-enabled smart windows, buildings and wearables
Publisher: Walter de Gruyter GmbH
Date: 06-2016
Abstract: Design and production of spectrally smart windows, walls, roofs and fabrics has a long history, which includes early ex les of applied nanophotonics. Evolving nanoscience has a special role to play as it provides the means to improve the functionality of these everyday materials. Improvement in the quality of human experience in any location at any time of year is the goal. Energy savings, thermal and visual comfort indoors and outdoors, visual experience, air quality and better health are all made possible by materials, whose “smartness” is aimed at designed responses to environmental energy flows. The spectral and angle of incidence responses of these nanomaterials must thus take account of the spectral and directional aspects of solar energy and of atmospheric thermal radiation plus the visible and color sensitivity of the human eye. The structures required may use resonant absorption, multilayer stacks, optical anisotropy and scattering to achieve their functionality. These structures are, in turn, constructed out of particles, columns, ultrathin layers, voids, wires, pure and doped oxides, metals, polymers or transparent conductors (TCs). The need to cater for wavelengths stretching from 0.3 to 35 μm including ultraviolet-visible, near-infrared (IR) and thermal or Planck radiation, with a spectrally and directionally complex atmosphere, and both being dynamic, means that hierarchical and graded nanostructures often feature. Nature has evolved to deal with the same energy flows, so biomimicry is sometimes a useful guide.
Energy-efficient coatings in the NanohouseTM Initiative
Publisher: Elsevier BV
Date: 04-2004
Quasistatic optical response of pairs of touching spheres with arbitrary dielectric permeability
Publisher: AIP Publishing
Date: 04-1993
DOI: 10.1063/1.352947
Abstract: The problem of polarization of two touching spherical particles, of any complex dielectric constant, immersed in a uniform external electric field is solved exactly in the tangent-sphere frame. A straightforward integral over the continuum of eigenstates yields the dipole moment for fields parallel and perpendicular to the line joining the centers. Predictions are compared to those from a recent approximate model based on the method of images. A modified Clausius–Mossotti formalism is used to assess the impact on absorption and refraction at optical frequencies (in the quasistatic limit). Actual composite materials containing small touching sphere pairs are considered.
A method to measure total atmospheric long-wave down-welling radiation using a low cost infrared thermometer tilted to the vertical
Publisher: Elsevier BV
Date: 03-2015
Dilute LaB6 nanoparticles in polymer as optimized clear solar control glazing
Publisher: AIP Publishing
Date: 10-06-2003
DOI: 10.1063/1.1584092
Abstract: Window s les with a LaB6 nanoparticle-doped polymer laminate were tested for their performances in the reduction of solar heat gain. The near-infrared absorption, caused by the excitation of surface plasmons, was modeled using an average ellipsoid approach, including a size-induced broadening of the Drude part of the dielectric function. The resonance positions are well reproduced by this method and the size effect broadens the bulk resonance to an extent observed in the s le spectra. Additional broadening and spectral features observed in the absorption of the s les are attributed to shape and orientation effects.
Electrochemical capacitance of mesoporous gold
Publisher: Springer Science and Business Media LLC
Date: 03-2005
DOI: 10.1007/BF03215223
Polymeric mesh for durable infra-red transparent convection shields: Applications in cool roofs and sky cooling
Publisher: Elsevier BV
Date: 08-2013
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