ORCID Profile
0000-0003-0643-0784
Current Organisation
Institut de Recherches sur la Catalyse et l'Environnement de Lyon
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Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3SC50800E
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3NR05710K
Abstract: We present an STM and XPS study on the synthesis of organometallic and covalent polymeric networks and elucidate the role of the substrate on their thermal stability.
Publisher: IOP Publishing
Date: 08-2011
Abstract: We review recent new avenues for controlling two-dimensional (2D) self-assembly stabilized by non-covalent interactions. The use of host–guest architectures has opened new pathways for supramolecular self-assembly in two dimensions by immobilizing molecules of interest in 2D nano-porous networks. We also describe how a judicious choice of guest molecule can induce effective changes in host templates. These transformations could enable full control of 2D self-assembly with nanoscale precision, by tuning parameters such as stoichiometry, geometry and non-covalent interactions. This approach is of paramount importance for understanding changes of dimensionality and subsequently the formation of 2D and 3D supramolecular networks and ordered films that can be used as active materials for applications (e.g., electronic devices).
Publisher: American Chemical Society (ACS)
Date: 25-03-2014
DOI: 10.1021/NN500322R
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4NR02512A
Abstract: We describe a new method for the growth of reduced graphene oxide rGO on the 316L alloy of stainless steel 316L. Cell viability studies reveal that these rGO coatings do not have toxic effects on mammalian cells.
Publisher: Springer Science and Business Media LLC
Date: 04-01-2016
DOI: 10.1038/NCOMMS10235
Abstract: On-surface covalent self-assembly of organic molecules is a very promising bottom–up approach for producing atomically controlled nanostructures. Due to their highly tuneable properties, these structures may be used as building blocks in electronic carbon-based molecular devices. Following this idea, here we report on the electronic structure of an ordered array of poly(para-phenylene) nanowires produced by surface-catalysed dehalogenative reaction. By scanning tunnelling spectroscopy we follow the quantization of unoccupied molecular states as a function of oligomer length, with Fermi level crossing observed for long chains. Angle-resolved photoelectron spectroscopy reveals a quasi-1D valence band as well as a direct gap of 1.15 eV, as the conduction band is partially filled through adsorption on the surface. Tight-binding modelling and ab initio density functional theory calculations lead to a full description of the band structure, including the gap size and charge transfer mechanisms, highlighting a strong substrate–molecule interaction that drives the system into a metallic behaviour.
Publisher: American Chemical Society (ACS)
Date: 09-09-2013
DOI: 10.1021/NN4035684
Abstract: We provide insight into surface-catalyzed dehalogenative polymerization, analyzing the organometallic intermediate and its evolution into planar polymeric structures. A combined study using scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), low energy electron diffraction (LEED), near-edge X-ray absorption fine structure (NEXAFS) spectroscopy and first-principles calculations unveils the structural conformation of substrate-bound phenylene intermediates generated from 1,4-dibromobenzene precursors on Cu(110), showing the stabilizing role of the halogen. The appearance of covalently bonded conjugated structures is followed in real time by fast-XPS measurements (with an acquisition time of 2 s per spectrum and heating rate of 2 K/s), showing that the detaching of phenylene units from the copper substrate and subsequent polymerization occur upon annealing above 460 ± 10 K.
Location: France
No related grants have been discovered for Luis Cardenas.