Structural and compositional evolution during oxidation of vanadium coatings

Shi-Ji Jiang; Chun-Bo Ye; Mohammad Sayeedur R Khan; Claes-Goeran Granqvist

doi:10.1117/12.20444

1 August 1990 Structural and compositional evolution during oxidation of vanadium coatings

Shi-Ji Jiang, Chun-Bo Ye, Mohammad Sayeedur R Khan, Claes-Goeran Granqvist

Proceedings Volume 1272, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion IX; (1990) https://doi.org/10.1117/12.20444
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

Abstract

Thin vanadium oxide coatings were made by vacuum evaporation followed by annealing posttreatment in the presence of air. The thickness increased by a factor as large as 2.3 upon oxidation. Temperaturedependent electrical conductivity as well as spectral transmittance were measured vs. annealing time; it took a few hours to establish V02 with well-defined semiconductor-metal transition at 57°C. Electron diffractograms indicated a bcc monoclinic transformation upon annealing, and electron micrographs showed pronounced grain growth. Initial XPS core level spectra gave evidence for vanadium in different oxidation states.

Citation Download Citation

Shi-Ji Jiang, Chun-Bo Ye, Mohammad Sayeedur R Khan, and Claes-Goeran Granqvist "Structural and compositional evolution during oxidation of vanadium coatings", Proc. SPIE 1272, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion IX, (1 August 1990); https://doi.org/10.1117/12.20444

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