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Proceedings Paper

Optical and electrical properties of colored and transparent states of polycrystalline electrochromic WO3 thin films prepared by CVD
Author(s): Albert Donnadieu; Mohammed Regragui; Ahmed Abdellaoui; Dimitrios Davazoglou
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Paper Abstract

WO polycrystalline thin films were prepared by annealing, at 500 or 600°C in air, o black tungsten layers produced by chemical vapour deposition (CVD) of W(CO)6 on fused quartz or Sn02-coated pyrex substrates. The optical and electrical properties were investigated when the electrochromic samples were in the coloured and bleached states. A passage from a semiconductor to metallic behaviour appears during the colouration. This transition is discussed using the Hubbard-Mott and free electron scattering models.

Paper Details

Date Published: 1 August 1990
PDF: 10 pages
Proc. SPIE 1272, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion IX, (1 August 1990); doi: 10.1117/12.20445
Show Author Affiliations
Albert Donnadieu, Univ. de Montpellier II (France)
Mohammed Regragui, Univ. de Montpellier II (France)
Ahmed Abdellaoui, Univ. de Montpellier II (France)
Dimitrios Davazoglou, Univ. de Montpellier II (France)


Published in SPIE Proceedings Vol. 1272:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion IX
Claes-Goeran Granqvist; Carl M. Lampert, Editor(s)

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