Electrochromic oxides: microstructures and optical properties

Claes-Goeran Granqvist

doi:10.1117/12.161949

22 October 1993 Electrochromic oxides: microstructures and optical properties

Claes-Goeran Granqvist

Proceedings Volume 2017, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XII; (1993) https://doi.org/10.1117/12.161949
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

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.

Citation Download Citation

Claes-Goeran Granqvist "Electrochromic oxides: microstructures and optical properties", Proc. SPIE 2017, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XII, (22 October 1993); https://doi.org/10.1117/12.161949

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