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請使用永久網址來引用或連結此文件:
https://irlib.pccu.edu.tw/handle/987654321/21118
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| 題名: | Rapid Synthesis of Bundled Tungsten Oxide Nanowires by Microwave Plasma-Enhanced Chemical Vapor Deposition and Their Optical Properties |
| 作者: | Hsieh, YT (Hsieh, Yun-Tsung)
Hsueh, SH (Hsueh, Sen-Hong)
Chen, US (Chen, Uei-Shin)
Huang, MW (Huang, Meng-Wen)
Shih, HC (Shih, Han C.) |
| 貢獻者: | 化材所 |
| 關鍵詞: | FIELD-EMISSION PROPERTIES
LOW-TEMPERATURE
NANOTUBES
ARRAYS
ULTRAVIOLET
NANORODS |
| 日期: | 2010 |
| 上傳時間: | 2011-12-15 15:47:36 (UTC+8) |
| 摘要: | In recent years, the synthesis of one-dimensional nanomaterials has assumed considerable importance because of the potential applications of these nanomaterials especially in nanodevices. In this study, bundled tungsten oxide (W(18)O(49)) nanowires having diameters of 25-60 nm and lengths of several micrometers were fabricated on Si substrates within 1.5 min by microwave plasma-enhanced chemical vapor deposition (MPECVD). The crystal structure, morphology, and chemical composition of these nanowires were characterized by scanning electron microscopy, X-ray diffraction, transmission electron microscopy, energy-dispersive X-ray spectroscopy, and cathodoluminescence (CL) spectrometry. The growth of the W(18)O(49) nanowires occurred along the [010] plane. Because no catalysts were used, it was suggested, and then analytically confirmed, that the vapor-solid mechanism was suggested for this growth process; this has been confirmed analytically. An orange emission was observed in the CL spectra, suggesting that the W(18)O(49) nanowires exhibited a redshift, resulting from the presence of significant O deficiencies. In this manner, our overall results demonstrate that MPECVD is a highly effective and suitable method for the fabrication of W(18)O(49) nanowires. (C) 2010 The Electrochemical Society. [DOI:10.1149/1.3459906] All rights reserved. |
| 顯示於類別: | [化學工程與材料工程學系暨碩士班] 期刊論文
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