| 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 | |
| ISSN | 0040-6090 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 | CHE |
| 公開徵稿 | |
| 出版型式 | 紙本 電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/96249 ) |
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