Preparation and characterization of electrochromic tungsten oxide-titania composite thin films with different tungsten/titanium ratios
學年 102
學期 2
出版（發表）日期 2014-04-01
作品名稱 Preparation and characterization of electrochromic tungsten oxide-titania composite thin films with different tungsten/titanium ratios
作品名稱（其他語言）
著者 Lin, C.-L.; Chen, Y.-W.; Chen, E.
單位 淡江大學化學工程與材料工程學系
出版者 Lausanne: Elsevier S.A.
著錄名稱、卷期、頁數 Thin Solid Films 556, pp.48–53
摘要 Tungsten oxide–titania composite thin films with different W/Ti atomic ratios were prepared and characterized in this study. Surface morphology, composition and structure of the composite thin films were investigated by scanning electron microscope with an energy dispersive spectrometer, X-ray diffraction and atomic force microscope analyses. Electrochromic properties including transmittance modulation ability, coloration efficiency and coloring/bleaching response time of these thin films were examined using cyclic voltammetry and double-potential-step experiment with in-situ ultraviolet–visible spectroscopy measurement. The presence of titania in the composite thin film could inhibit the crystal growth of tungsten oxide, which enhances the transmittance modulation ability and coloration efficiency but prolongs the coloring/bleaching response time of the composite thin film. The tungsten oxide–titania composite thin film (WTi-30) with a W/Ti atomic ratio of 78/22 exhibited better transmittance modulation ability (57.5%) and coloration efficiency (49.2 cm2/C) than a pristine tungsten trioxide thin film (53.6%, 36.2 cm2/C).
關鍵字 Tungsten oxide; Titania; Electrochromism; Coloration efficiency; Sol–gel deposition
語言 en_US
ISSN 0040-6090
期刊性質
收錄於 SCI EI
產學合作
通訊作者
審稿制度 是
國別 CHE
公開徵稿
出版型式 紙本
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