資料載入中.....
|
請使用永久網址來引用或連結此文件:
http://ir.ncue.edu.tw/ir/handle/987654321/13983
|
| 題名: | Optical and Electrical Characterizations of ZnMnO Thin Films on c-Al2O3 |
| 作者: | Lin, Hung-Ji;Lin, Der-Yuh;Wu, Jenq-Shinn;Yang, Chu-Shou;Chou, Wu-Ching;Lo, Wei-Hsuan;Wang, Jyh-Shyang |
| 貢獻者: | 電子工程學系 |
| 日期: | 2009-04
|
| 上傳時間: | 2012-09-10T02:34:24Z
|
| 出版者: | The Japan Society of Applied Physics |
| 摘要: | We have studied the manganese (Mn) composition dependence of the optical and electrical properties of ZnMnO thin films, which are grown on c-Al 2O3 substrates by plasma-assisted molecular beam epitaxy (PAMBE). The lattice constant and grain size are estimated by Xray diffraction (XRD), and it is found that the lattice constant increases and the grain size decreases with increasing Mn composition. When more Mn is incorporated into the ZnMnO thin films, a blue shift of the absorption edges and photoluminescence emission peaks are observed. Hall measurement shows n-type conduction behavior for all the samples. The decrease in mobility might be related with the increase in the number of impurity scattering centers, and the decrease in the carrier concentration can be attributed to the carrier quenching effect induced by the deep-level defects. The ac electrical response of ZnMnO is studied by impedance spectroscopy (IS). The equivalent RC circuit and parameters of the grain and grain boundary are determined. |
| 關聯: | Japanese Journal of Applied Physics, 48: 04C122 |
| 顯示於類別: | [電子工程學系] 期刊論文
|
文件中的檔案:
| 檔案 |
大小 | 格式 | 瀏覽次數 |
|---|
| index.html | 0Kb | HTML | 680 | 檢視/開啟 |
|
在NCUEIR中所有的資料項目都受到原著作權保護.
|
