Mg doping of thermochromic VO2 films enhances the optical transmittance and decreases the metal-insulator transition temperature | Zendy

Nuru R. Mlyuka | Zendy; Gunnar A. Niklasson | Zendy; C. G. Granqvist | Zendy

Open Access

Mg doping of thermochromic VO2 films enhances the optical transmittance and decreases the metal-insulator transition temperature

Author(s) -

Nuru R. Mlyuka,

Gunnar A. Niklasson,

C. G. Granqvist

Publication year - 2009

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3229949

Subject(s) - transmittance , materials science , thermochromism , doping , sputter deposition , optoelectronics , visible spectrum , sputtering , thin film , optics , nanotechnology , chemistry , physics , organic chemistry

Thermochromic films of MgxV1-xO2 were made by reactive dc magnetron sputtering onto heated glass. The metal-insulator transition temperature decreased by similar to 3 K/at. %Mg, while the optical transmittance increased concomitantly. Specifically, the transmittance of visible light and of solar radiation was enhanced by similar to 10% when the Mg content was similar to 7 at. %. Our results point at the usefulness of these films for energy efficient fenestration

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