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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/987654321/24167
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| 題名: | The preparation and cathodoluminescence of ZnS nanowires grown by chemical vapor deposition |
| 作者: | Huang, MW (Huang, Meng-Wen)
Cheng, YW (Cheng, Yin-Wei)
Pan, KY (Pan, Ko-Ying)
Chang, CC (Chang, Chen-Chuan)
Shieu, FS (Shieu, F.S.)
Shih, HC (Shih, Han C.) |
| 貢獻者: | Inst Mat Sci & Nanotechnol |
| 關鍵詞: | Zinc sulfide
Nanowires
X-ray photoelectron spectrometer
Cathodoluminescence |
| 日期: | 2012-11-15 |
| 上傳時間: | 2013-02-18 16:10:33 (UTC+8) |
| 摘要: | Single crystal ZnS nanowires were successfully synthesized in large quantities on Si (1 0 0) substrates by simple thermal chemical vapor deposition without using any catalyst. The morphology, composition, and crystal structure were characterized by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), and cathodoluminescence (CL) spectroscopy. SEM observations show that the nanowires have diameters about 20-50 nm and lengths up to several tens of micrometers. XRD and TEM results confirmed that the nanowires exhibited both wurtzite and zinc blende structures with growth directions aligned along [0 0 0 2] and [1 1 1], respectively. The CL spectrum revealed emission bands in the UV and blue regions. The blue emissions at 449 and similar to 581 nm were attributed to surface states and impurity-related defects of the nanowires, respectively. The perfect crystal structure of the nanowires indicates their potential applications in nanotechnology and in the fabrication of nanodevices. Crown Copyright (C) 2012 Published by Elsevier B. V. All rights reserved. |
| 關聯: | APPLIED SURFACE SCIENCE 卷: 261 頁數: 665-670 |
| 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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