Photointercalation effect of thin WO3 films

Photointercalation effect of thin WO3 films

It is shown that thin amorphous films of WO3 exhibit a photoinduced reversible coloration in an electrochemical cell of the form quartz/semitransparent Au/ethanol/WO3/In2O3-coated glass. From measurements of the optical and electrical properties of the films, the coloration is attributed to the form...

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Veröffentlicht in:Applied physics letters 1990-09, Vol.57 (13), p.1324-1325
Hauptverfasser: Nagasu, Masahiro, Koshida, Nobuyoshi
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container_title Applied physics letters
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creator Nagasu, Masahiro
Koshida, Nobuyoshi
description It is shown that thin amorphous films of WO3 exhibit a photoinduced reversible coloration in an electrochemical cell of the form quartz/semitransparent Au/ethanol/WO3/In2O3-coated glass. From measurements of the optical and electrical properties of the films, the coloration is attributed to the formation of HxWO3, presumably due to a photointercalation of protons into WO3 films. This effect is potentially useful for storage, learning, and modulation of two-dimensional optical information.
doi_str_mv 10.1063/1.104231
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title Photointercalation effect of thin WO3 films
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