Вышедшие номера
The Effect of the Crystalline Structure Transformation in VO2/Glass by Inserting TiO2 Buffer Layer and Its Application in Smart Windows
Полная версия: 10.1134/S106378262008014X
Liu C.1, Wang S.1, Li R.1, Liu J.1, Huang M.1
1Key Lab of Informational Opto-Electronical Materials and Apparatus, School of Physics and Electronics, Henan University, Kaifeng,, China
Email: hmingju@163.com
Поступила в редакцию: 8 апреля 2020 г.
Выставление онлайн: 11 мая 2020 г.

Vanadium dioxide (VO2) undergoes a reversible metal-insulator transition at low temperature, which has wide range of applications in smart windows and infrared detectors. However, the preparation of VO2 films with controllable phase on glass substrate is still limited. In this paper, it is shown that B-phase can be transformed into M-phase with monoclinic structure by inserting TiO2 buffer layer on glass substrate at low temperature of 400oC. This crystalline transformation might be attributed to that Ti atoms diffuse and form oxygen deficient environments. Different thicknesses of buffer layers have different effect on characteristic of VO2 film. With 50 nm TiO2 buffer layer, the VO2/TiO2/glass film showed an abrupt resistance change with more than 2.5-order of magnitude across metal-insulator transition, and the visible-light transmittance value is as high as 55.5% with the solar modulation capability up to 8.6%. The current results are very important for the application in smart windows. Keywords: vanadium dioxide, TiO2 buffer layer, metal-insulator transition, solar modulation capability.

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