教師資料查詢 | 類別: 期刊論文 | 教師: 張經霖 CHANG, HENRY CHING-LIN (瀏覽個人網頁)

標題:Characterization of gasochromic vanadium oxides films by X-ray absorption spectroscopy
學年102
學期1
出版(發表)日期2013/10/01
作品名稱Characterization of gasochromic vanadium oxides films by X-ray absorption spectroscopy
作品名稱(其他語言)
著者Ho, Y.K.; Chang, C.C.; Wei, D.H.; Dong, C.L.; Chen, C.L.; Chen, J.L.; Jang, W.L.; Hsu, C.C.; Chan, T.S.; Kumar, Krishna; Chang, C.L.; Wu, M.K.
單位淡江大學物理學系
出版者Lausanne: Elsevier S.A.
著錄名稱、卷期、頁數Thin Solid Films 544, pp.461-465
摘要A series of vanadium oxide thin films with different layer thicknesses were prepared by the sol–gel process. These V2O5 thin films exhibited excellent gasochromic performance with color change from yellow to gray/black on exposure to hydrogen gas and fast response rate under ambient condition. The structure and morphology of the films were investigated by X-ray powder diffractometer and scanning electron microscope. The H2 gasochromic property and the optical transmittance change of colored and bleached films were characterized by UV–visible spectrophotometer. Further, the gasochromic effect and the coloration mechanism of these films were investigated in detail by X-ray absorption spectroscopy. The investigations demonstrated that due to insertion of hydrogen ions, the valence state of vanadium varied from 4.8+ to 4.1+ and a distortion was observed in the structural symmetry of VO6 octahedron.
關鍵字Vanadium oxide; Thin films; Gasochromic; Sol–gel; XAS
語言
ISSN0040-6090;1879-2731
期刊性質
收錄於SCI
產學合作
通訊作者Chen, C.L.
審稿制度
國別瑞士
公開徵稿
出版型式紙本;電子版
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