Journal ArticleDOI
Effect of preparation conditions on the optical and thermochromic properties of thin films of tungsten oxide
TLDR
In this paper, the effect of preparation conditions (heating of substrates and oxygen environment) on the optical constants (n and k) of thin tungsten oxide films has been studied.About:
This article is published in Solar Energy Materials and Solar Cells.The article was published on 2002-02-15. It has received 58 citations till now. The article focuses on the topics: Carbon film & Vacuum evaporation.read more
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Electrochromics for smart windows: thin films of tungsten oxide and nickel oxide, and devices based on these
TL;DR: In this paper, a conceptual model for structural characteristics of amorphous W oxide films, based on notions of defects in the ideal ammorphous state, is given for thin film deposition by sputtering, electronic band structure and ion diffusion.
Journal ArticleDOI
Stability and Controlled Composition of Hexagonal WO3
Imre Miklós Szilágyi,János Madarász,György Pokol,Péter Király,Gábor Tárkányi,S. Saukko,János Mizsei,Attila Tóth,András Szabó,Katalin Varga-Josepovits +9 more
TL;DR: In this article, the formation of nanosized hexagonal tungsten oxide (h-WO3) during the annealing of hexagonal ammonium Tungsten bronze (HATB), (NH4)0.33−xWO 3−y was investigated by TG/DTA-MS, XRD, SEM, Raman, XPS, and 1H-MAS NMR analyses.
Journal ArticleDOI
Highly flexible organic light-emitting diodes based on ZnS/Ag/WO3 multilayer transparent electrodes
TL;DR: In this article, the authors report on highly flexible organic light-emitting diodes based on ZnS/Ag/WO 3 (ZAW) multilayer transparent electrodes.
Journal ArticleDOI
Spin coated versus dip coated electrochromic tungsten oxide films: Structure, morphology, optical and electrochemical properties
TL;DR: In this paper, the morphological and structural evolution of spin and dip coated films as a function of annealing temperature (250 and 500°C) has been examined and compared by Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM) and X-ray diffraction (XRD).
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Electrochromic nanostructured tungsten oxide films by sol-gel: Structure and intercalation properties
TL;DR: In this article, the annealing-induced microstructural evolution for amorphous tungsten oxide films is shown to show quasi-reversible structural changes, as ascertained by X-ray diffraction and Fourier transform infrared spectral data, and a high optical modulation of 72% (gimel=650nm) and a coloration efficiency maximum of 132 cm(2) C-1 at 800 nm under a lithium intercalation level of x = 0.20.
References
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Journal ArticleDOI
Electrochromic materials and devices for energy-efficient windows
TL;DR: In this article, inorganic and organic electrochromic materials are discussed in the context of developing a film-based optical shutter for a window application, which allows regulation of conductive and radiative heat transfer rates, with variable optical attenuation.
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Colouration of tungsten oxide films: A model for optically active coatings
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Physical and electrochromic properties of the amorphous and crystalline tungsten oxide thick films prepared under reducing atmosphere
TL;DR: The physical and electrochemichromic properties of amorphous and crystalline tungsten oxide films prepared by thermal evaporation of WO3 powder under a reducing atmosphere have been investigated.
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Optically switchable thin films: a review
TL;DR: In this article, a review of thin films that have been shown to switch dramatically in the visible range, as well as the near-IR, and their properties, are reviewed.
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Optical properties of the sodium-tungsten bronzes and tungsten trioxide
TL;DR: In this article, a polarization-modulation ellipsometric technique was used to make direct measurements of the optical dielectric constants of single-crystal specimens of the nonstoichiometric tungsten-bronze compound.