Investigation of optical and physico-chemical properties of titanium-doped V₂O₅ nanofilms

I. Aimbetova, Rafael Jiménez-Castañeda, J.A. Clavijo-Blanco, Б. Умиров, B. Seitov

2022

Data confidence 70 medium

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Abstract

In this paper, undoped and Ti-doped V2O5 thin ﬁlms were fabricated and deposited onto glass substrates using a «doctor blading» method. Then, the effects of Ti-doping on the optical properties of the thin ﬁlms were investigated. Titanium doping concentration of 0.25-0.75 at.% has been investigated. After treatment in air at different temperatures, the obtained films was characterised by various techniques such as scanning electron microscopy (SEM), X-ray diffraction (XRD) and photoluminescence (PL). It was found that the as-obtained doped films possessed thermochromic properties and optical switching characters. According to optical tests, thin linings of vanadium dioxide alloyed with Ti have optical properties that are effective for application. Because of their capacity to automatically control interior solar irradiation, lower air-conditioning energy consumption, and maintain a comfortable internal thermal climate, smart windows have drawn increased interest in recent years. The doping strategy and integrating with functional coatings can regulate the properties of obtained V2O5 ﬁlms.