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Electrochromic and photoelectrochromic properties of sol–gel derived tungsten trioxide/titania composite thin films

類別:期刊論文

學年 / 學期:105-2

出版日期:2017-06-01 00:00:00

著者:Cheng-Lan Lin; Zhen-Wei Yang; Chih-Hsien Chen

著錄名稱、卷期、頁數:Research on Chemical Intermediates 43(6), p.3553-3562

摘要:Tungsten trixoide/titania (WO3-titania) composite thin films with W/Ti molar ratios of 100/0, 98/2, 96/4, 94/6 92/8 and 90/10 were prepared on fluorine-doped tin oxide conducting glass, and their electrochromic (EC) and photoelectrochromic (PEC) performances were investigated in this study. The composite thin films were synthesized by sol–gel process using peroxotungstic acid and titanium (IV) n-butoxide as the precursors. The surface morphology and composition of the composite thin films were characterized using scanning electron microscope with energy dispersive spectrometer. Electrochemical experiments with in situ spectroscopic measurement were employed to study the EC properties of the composite thin films. It was found that the presence of titania in the WO3 matrix might slightly decreases its EC performance. PEC cells using the composite thin films as the working electrode and a sputtered semitransparent platinum thin film on ITO as the counter electrode were fabricated and their PEC performances were investigated. The device using composite thin film prepared from sol solution with a W/Ti molar ratio of 96/4 exhibited the best PEC performance.

關鍵字:Electrochromic material;Photoelectrochromism;Tungsten trioxide;Titania;Composite

語言:en

ISSN:0922-6168

期刊性質:國外

收錄於:SCI

通訊作者:Cheng-Lan Lin

審稿制度:

國別:TWN

出版型式:電子版,紙本