| Photoluminescence characterization of ZnCdSe/ZnSe quantum dot systems with different ZnCdSe coverages | |
|---|---|
| 學年 | 96 |
| 學期 | 2 |
| 出版（發表）日期 | 2008-02-01 |
| 作品名稱 | Photoluminescence characterization of ZnCdSe/ZnSe quantum dot systems with different ZnCdSe coverages |
| 作品名稱（其他語言） | |
| 著者 | Jen, Jen-Yi; Linb, Chen-Yen;Lee,Jia-Ren; Lu, Chien-Rong |
| 單位 | 淡江大學物理學系 |
| 出版者 | Kidlington: Pergamon |
| 著錄名稱、卷期、頁數 | Journal of Physics and Chemistry of Solids 69(2-3), pp.485-489 |
| 摘要 | We have characterized the temperature and excitation power density dependence of the photoluminescence (PL) spectra from ZnCdSe/ZnSe quantum dot (QD) system with different ZnCdSe coverages. A single spectral peak was observed from the sample composed of thick ZnCdSe layers while two peaks were observed from those with thin ZnCdSe layers. The temperature dependence of the peak position and width indicated that the spectral features originated from three-dimensionally confined QD systems. The relative intensity of spectral peaks remained the same even when the excitation power density was 80-fold weaker, and verified that different spectral lines originated from different groups of QDs instead of emissions from different excited states within one group of QDs. The thickness variation of spectral profiles also characterized the growth-mode evolution with the ZnCdSe thickness. |
| 關鍵字 | A. Nanostructure;A. Semiconductors;D. Luminescence |
| 語言 | en |
| ISSN | 0022-3697 |
| 期刊性質 | 國外 |
| 收錄於 | |
| 產學合作 | |
| 通訊作者 | Lu, Chien-Rong |
| 審稿制度 | |
| 國別 | GBR |
| 公開徵稿 | |
| 出版型式 | 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27609 ) |
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