ORCID Profile
0000-0002-7550-7397
Current Organisation
University of Adelaide
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: Elsevier BV
Date: 03-2016
Publisher: Wiley
Date: 17-06-2013
DOI: 10.1111/JACE.12457
Publisher: Wiley
Date: 08-2019
Publisher: The Optical Society
Date: 15-01-2014
DOI: 10.1364/OME.4.000315
Publisher: Wiley
Date: 10-08-2015
DOI: 10.1111/JACE.13804
Publisher: The Optical Society
Date: 13-06-2014
DOI: 10.1364/OME.4.001367
Publisher: The Optical Society
Date: 20-12-2012
DOI: 10.1364/OE.20.029743
Publisher: Research Square Platform LLC
Date: 05-07-2023
DOI: 10.21203/RS.3.RS-3118468/V1
Abstract: Silicate glasses with metallic nanoparticles (NPs) have been of intense interest in art, science and technology as the plasmonic properties of the metallic NPs equip glass with light modulation capability. The so-called striking technique has enabled precise control of the in-situ formation of metallic NPs in silicate glasses for applications from coloured glasses to photonic devices. Over the past two decades, there has been a large amount of work to adapt the striking technique to form gold or silver NPs in tellurite glasses that exhibit the unique combination of easy fabrication, low phonon energy, wide transmission window and high solubility of luminescent rare earth ions. Nevertheless, the control of the in-situ formation of metal NPs and hence their plasmonic features in tellurite glasses has remained insufficient for photonic applications. Here, we first uncover the challenges of the traditional striking technique to create gold NPs in tellurite glass. Then, we demonstrate precise control of the size and concentration of gold NPs in tellurite glass by developing new approaches to both steps of the striking technique: a controlled gold crucible corrosion technique to incorporate gold ions in tellurite glass and a novel powder reheating technique to subsequently transform the gold ions to gold NPs. Using the Mie theory, the size, size distribution and concentration of the gold NPs formed in tellurite glass were determined from the plasmonic properties of the NPs. This fundamental research provides guidance to designing and manipulating the plasmonic properties in tellurite glass for photonics research and applications.
Publisher: Elsevier BV
Date: 04-2015
Publisher: Elsevier BV
Date: 11-2013
Publisher: Elsevier BV
Date: 02-2016
Publisher: Elsevier BV
Date: 05-2013
Publisher: American Scientific Publishers
Date: 03-2017
Publisher: Wiley
Date: 16-11-2013
DOI: 10.1111/JACE.12086
Publisher: IOP Publishing
Date: 15-04-2014
DOI: 10.1088/0957-4484/25/18/185401
Abstract: Four-layered plasmonic structures of glass/Au/TiO2/NaYF4:Yb, Er, Gd nanorods were fabricated and tremendous improvement in upconversion luminescence (UCL) was observed under infrared 980 nm excitation. The TiO2 film was used as an oxide spacer. The emission intensity of the upconversion (UC) nanorods was strongly modulated by the thickness of the TiO2 layer. The extent of modulation depended on the separation distance between the Au layer and UC nanorods. A maximum UCL enhancement of 192-fold was observed for one green emission (540 nm) when a 10 nm-thick TiO2 film was used 150-fold was observed for the other green emission (521 nm) at the same thickness of TiO2 and 105-fold was observed for the red emission (654 nm) when a 7.5 nm-thick TiO2 film was used. Alteration of the radiative decay rate was demonstrated for the first time in measurements of the decay times of UC nanorods positioned at various distances from the Au layer. The light interaction and coupling between metal Au and UC nanorods is numerically studied. The UCL mechanisms of multilayer plasmonic structures are discussed. Experimental results are explained and correspond well with those of theoretical calculations.
Publisher: Wiley
Date: 10-01-2013
DOI: 10.1111/JACE.12155
Publisher: The Optical Society
Date: 11-10-2012
DOI: 10.1364/OL.37.004275
Publisher: The Electrochemical Society
Date: 2012
DOI: 10.1149/2.JES113286
Publisher: Elsevier BV
Date: 08-2014
Publisher: Wiley
Date: 22-05-2014
DOI: 10.1111/JACE.12983
No related grants have been discovered for Yunle Wei.