Multichromism in vanadium oxides: the influence of dopants

Aline D. Rougier; Brandon Faceira; Ambreen Ambreen; Issam Mjejri; Shian Guan; Nicolas Penin; Olivier Toulemonde; Manuel Gaudon; Jean Louis Victor

doi:10.1117/12.2618455

5 March 2022 Multichromism in vanadium oxides: the influence of dopants

Aline D. Rougier, Brandon Faceira, Ambreen Ambreen, Issam Mjejri, Shian Guan, Nicolas Penin, Olivier Toulemonde, Manuel Gaudon, Jean Louis Victor

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Proceedings Volume PC12002, Oxide-based Materials and Devices XIII; PC120020S (2022) https://doi.org/10.1117/12.2618455
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

Chromogenic materials exhibit tunable properties as a consequence of an external stimulus such as light (photochromism), temperature (thermochromism) or potential (electrochromism..). Those smart compounds find applications in buildings and automobile industry by controlling light and heat transfer through windows for transmissive devices while colour changes in reflective devices offer great interest in the field of displays and printed electronics. Among various oxides, vanadium oxides plays a peculiar role as they adopt a specific property in respect of their stoichiometry, namely thermochromism for VO2 and electrochromism for V2O5. Comparing thin films of few hundred nanometers by RF sputtering method or thick films of few micrometers, specific attention will be devoted to the role of dopants. For instance easy tuning of the transition temperature down to RT and up to 130°C will be reported for Nb and Fe doped VO2 respectively while Mo-doping improves EC properties.

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Aline D. Rougier, Brandon Faceira, Ambreen Ambreen, Issam Mjejri, Shian Guan, Nicolas Penin, Olivier Toulemonde, Manuel Gaudon, and Jean Louis Victor "Multichromism in vanadium oxides: the influence of dopants", Proc. SPIE PC12002, Oxide-based Materials and Devices XIII, PC120020S (5 March 2022); https://doi.org/10.1117/12.2618455

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KEYWORDS

Oxides

Vanadium

Chemistry

Doping

Iron

Niobium

Solar cells

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