Journal ArticleDOI
Crystallographically oriented mesoporous WO3 films: synthesis, characterization, and applications.
TLDR
Mesoporous semiconducting films consisting of preferentially orientated monoclinic-phase nanocrystals of tungsten trioxide have been prepared using a novel version of the sol-gel method, combining excellent photoresponse to the blue region of the solar spectrum, up to 500 nm, with good transparency at wavelengths larger than 550 nm.Abstract:
Mesoporous semiconducting films consisting of preferentially orientated monoclinic-phase nanocrystals of tungsten trioxide have been prepared using a novel version of the sol−gel method. Transformations undergone by a colloidal solution of tungstic acid, stabilized by an organic additive such as poly(ethylene glycol) (PEG) 300, as a function of the annealing temperature have been followed by means of a confocal Raman microscope. The shape and size of WO3 nanoparticles, the porosity, and the properties of the films depend critically on preparation parameters, such as the tungstic acid/PEG ratio, the PEG chain length, and the annealing conditions. Well-crystallized WO3 films combine excellent photoresponse to the blue region of the solar spectrum, up to 500 nm, with good transparency at wavelengths larger than 550 nm. Particular applications of these nanocrystalline WO3 films include photoelectrochemical and electrochromic devices.read more
Citations
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TiO2 nanotubes: synthesis and applications.
TL;DR: This review attempts to cover all aspects, including underlying principles and key functional features of TiO(2), in a comprehensive way and also indicates potential future directions of the field.
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Nanostructured Tungsten Oxide – Properties, Synthesis, and Applications
Haidong Zheng,Jian Zhen Ou,Michael S. Strano,Richard B. Kaner,Arnan Mitchell,Kourosh Kalantar-zadeh +5 more
TL;DR: A general review of nanostructured Tungsten oxides, their properties, methods of synthesis, and a description of how they can be used in unique ways for different applications can be found in this article.
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Recent progress on photocatalytic and photoelectrochemical water splitting under visible light irradiation
TL;DR: A review of recent progress in this field can be found in this article by focusing on strategies that utilize visible light, such as two-step photoexcitation systems that were inspired by photosynthesis in nature, band engineering for producing novel photocatalysts that have both a high visible light absorption and suitable energy levels for water splitting, the development of new cocatalyst for efficient H 2 or O 2 production, fabrication of efficient photoelectrodes based on visible-light-responsive semiconductors, and the construction of tandem-type PEC water-splitting systems
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Photoelectrocatalytic materials for environmental applications
TL;DR: In this paper, the authors summarized recent research on and development of semiconductor-based photocatalyst materials that are applicable to environmental remediation and/or chemical synthesis purposes, including the incorporation of noble metal nanoclusters onto the surface of semiconducted particles.
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Plasmonic solar water splitting
TL;DR: In this article, localized surface plasmons and their effects on semiconductors, particularly in terms of energy transfer, scattering, and hot electron transfer, are reviewed, and the relevant physics, device geometries, and research progress in this area are discussed.
References
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Journal ArticleDOI
Conversion of light to electricity by cis-X2bis(2,2'-bipyridyl-4,4'-dicarboxylate)ruthenium(II) charge-transfer sensitizers (X = Cl-, Br-, I-, CN-, and SCN-) on nanocrystalline titanium dioxide electrodes
Mohammad Khaja Nazeeruddin,Andreas Kay,I. Rodicio,Robin Humphry-Baker,E. Mueller,Paul Liska,Nick Vlachopoulos,Michael Graetzel +7 more
TL;DR: Cis-X 2 Bis(2,2'-bipyridyl-4,4'-dicarboxylate)ruthenium(II) complexes were prepared and characterized with respct to their absorption, luminescence, and redox behavior.
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