Optical and photoelectric properties and colour centres in thin films of tungsten oxide

Deb, S. K.

doi:10.1080/14786437308227562

Cited by 1,050 publications

(410 citation statements)

References 14 publications

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“…Other devices based on amorphous materials range from electrochromic displays [28] to magnetic bubble domain memories [29]. The magnetic properties are discussed in 3 3.1.…”

Section: Physical Properties and Applicationsmentioning

confidence: 99%

Amorphous Solids : A Review of the Applications of the Mössbauer Effect

Coey

1974

J. Phys. Colloques

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“…Other devices based on amorphous materials range from electrochromic displays [28] to magnetic bubble domain memories [29]. The magnetic properties are discussed in 3 3.1.…”

Section: Physical Properties and Applicationsmentioning

confidence: 99%

Amorphous Solids : A Review of the Applications of the Mössbauer Effect

Coey

1974

J. Phys. Colloques

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“…For example, in contrast to what one would expect, nuclear reaction analysis (NRA) experiments could not provide proof of a systematicaUy increased hydrogen content of the colored films when protons were used as the injected ions [5,6). Furthermore, the DCI model accounts only for EC but not for PC coloration, where the same absorption band is generated simply by irradiation of a (1) bare wo3-y layer with ultraviolet (UV) light [7].…”

mentioning

confidence: 99%

Comparison between electrochromic and photochromic coloration efficiency of tungsten oxide thin films

Bechinger

Burdis

Zhang

1997

Solid State Communications

144

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We investigated the photocbromic (PC) and electrocbromic (EC) behavior of sputtered tungsten oxide (W0 3 _ 1 ) films with different oxygen deficiency y. It was found that both the PC and EC coloration efficiency increase with increasing oxygen deficiency in tungsten oxide. For PC efficiency, this behavior is consistent with the model of photocbromism developed recently. A recently developed model based on the small polaron transition between w S+ and W'+ states has been used to explain the dependence of EC coloring efficiency on the oxygen deficiency in tungsten oxide films. This new mechanism also revealed a close relationship between PC and EC. C 1997 Published by Elsevier Science Ud. All rights reserved

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“…In line with these worldwide efforts, use of smart windows will significantly decrease the cost of air conditioning and sun shading, and simultaneously improve the indoor comfort with added decoration effect 1 . Though photochromic 2 and thermochromic 3 technologies can also be used for smart windows, electrochromic (EC) smart windows [4][5][6][7][8] which can reversibly change their colours under external biases, own advantages with much better controllability, energy saving and durability. However, conventional EC devices need external biases to operate, resulting in additional energy consumption.…”

mentioning

confidence: 99%

A bi-functional device for self-powered electrochromic window and self-rechargeable transparent battery applications

et al. 2014

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Electrochromic smart windows are regarded as a good choice for green buildings. However, conventional devices need external biases to operate, which causes additional energy consumption. Here we report a self-powered electrochromic window, which can be used as a self-rechargeable battery. We use aluminium to reduce Prussian blue (PB, blue in colour) to Prussian white (PW, colourless) in potassium chloride electrolyte, realizing a device capable of self-bleaching. Interestingly, the device can be self-recovered (gaining blue appearance again) by simply disconnecting the aluminium and PB electrodes, which is due to the spontaneous oxidation of PW to PB by the dissolved oxygen in aqueous solution. The self-operated bleaching and colouration suggest another important function of the device: a self-rechargeable transparent battery. Thus the PB/aluminium device we report here is bifunctional, that is, it is a self-powered electrochromic window as well as a self-rechargeable transparent battery.

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Optical and photoelectric properties and colour centres in thin films of tungsten oxide

Cited by 1,050 publications

References 14 publications

Amorphous Solids : A Review of the Applications of the Mössbauer Effect

Amorphous Solids : A Review of the Applications of the Mössbauer Effect

Comparison between electrochromic and photochromic coloration efficiency of tungsten oxide thin films

A bi-functional device for self-powered electrochromic window and self-rechargeable transparent battery applications

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