Electrochromic properties of TiO2 thin films grown by thermionic vacuum arc method


My first article published in the journal!

For the full version, please visit Science Direct webpage.

Abstract

Titanium dioxide (TiO2) thin films were deposited on fluorine tin oxide/glass and indium tin oxide/glass substrates by thermionic vacuum arc in this work. The deposited films phases were identified as anatase and rutile from X-ray Diffractions. The bandgap of the samples has been found ~ 3.0 eV. The electrochromic properties of TiO2 thin films were investigated using cyclic voltammograms, chronoamperometry and chronocoulometric studies. Electrochemical cation intercalation was promoted using 0.1 M LiClO4 in propylene carbonate. Inserted/extracted charge, diffusion coefficient, coloration efficiency, optical modulation, and reversibility was calculated. Best results were obtained for TiO2/FTO sample with 18.6 cm2/C coloration efficiency. Deposited TiO2 thin films optical and morphological studies also covered.

Keywords

Electrochromic
Thin film
TiO2
TVA
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