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Proceedings Paper

Examination of tungsten-oxide-based thin films for optical memory
Author(s): Rebecca Bussjager; Joseph M. Osman; Joseph Chaiken; Mark A. Getbehead; Daniel S. Hinkel; Thomas McEwen
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Paper Abstract

Because of its well known electrochromic and photochromic properties, and its relative ease of large scale manufacture, tungsten oxide has long been a candidate for display applications. This use was first suggested by Deb in 1973, and numerous patents and papers in the primary literature followed. Tungsten oxide based electrochromic processes have been reviewed by Granquist. We are currently exploring the medium’s photochromic and electrochromic properties for memory and switching purposes. Photochromism refers to the fact that exposing the medium to light causes the material to change color. The light is thought to induce the formation of free charge carriers which can be mobile oxygen ions and radicals as well as electrons that initiate the chemistry leading to the color change. The process we have studied is represented by the chemical reaction below. This process is distinct from chemistry originally described by Deb and reviewed by Granquist in that subbandgap exploitation can be employed.

Paper Details

Date Published: 28 June 1999
PDF: 3 pages
Proc. SPIE 3864, Joint International Symposium on Optical Memory and Optical Data Storage 1999, 386427 (28 June 1999); doi: 10.1117/12.997628
Show Author Affiliations
Rebecca Bussjager, Air Force Research Lab. (United States)
Joseph M. Osman, Air Force Research Lab. (United States)
Joseph Chaiken, Syracuse Univ. and Laser Chemical Corp. (United States)
Mark A. Getbehead, Air Force Research Lab. (United States)
Daniel S. Hinkel, Air Force Research Lab. (United States)
Thomas McEwen, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 3864:
Joint International Symposium on Optical Memory and Optical Data Storage 1999
Shigeo R. Kubota; Ryuichi Katayama; Douglas G. Stinson, Editor(s)

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