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Proceedings Paper

Electrochromic oxides: microstructures and optical properties
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Paper Abstract

This paper attempts to lay down a foundation for a comprehensive theory of electrochromism among oxides. It is pointed out that crystals of all the well known electrochromic metal (Me) oxides are composed of MeO6 octahedra in various corner-sharing and edge-sharing arrangements. In electrochromic thin films there are cluster-type and columnar microstructures based on the MeO6 units. The coordination of the ions leads to schematic electronic bandstructures that, at least for the (defect) perovskite and rutile lattices, are able to explain the presence or absence of cathodic and anodic electrochromism. Small polaron absorption prevails in disordered oxides.

Paper Details

Date Published: 22 October 1993
PDF: 11 pages
Proc. SPIE 2017, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XII, (22 October 1993); doi: 10.1117/12.161949
Show Author Affiliations
Claes-Goeran Granqvist, Uppsala Univ. (Sweden)


Published in SPIE Proceedings Vol. 2017:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XII
Carl M. Lampert, Editor(s)

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