Origin and evolution of photoluminescence from si nanocrystals embedded in a sio2 matrix
文献类型：期刊论文
| 作者 | Wang, XX; Zhang, JG; Ding, L; Cheng, BW; Ge, WK; Yu, JZ; Wang, QM |
| 刊名 | Physical review b
 |
| 出版日期 | 2005-11-01 |
| 卷号 | 72期号:19页码:6 |
| ISSN号 | 1098-0121 |
| DOI | 10.1103/physrevb.72.195313 |
| 通讯作者 | Wang, xx(wangxiaoxin@red.semi.ac.cn) |
| 英文摘要 | A detailed analysis of the photoluminescence (pl) from si nanocrystals (ncs) embedded in a silicon-rich sio2 matrix is reported. the pl spectra consist of three gaussian bands (peaks a,b, and c), originated from the quantum confinement effect of si ncs, the interface state effect between a si nc and a sio2 matrix, and the localized state transitions of amorphous si clusters, respectively. the size and the surface chemistry of si ncs are two major factors affecting the transition of the dominant pl origin from the quantum confinement effect to the interface state recombination. the larger the size of si ncs and the higher the interface state density (in particular, si = o bonds), the more beneficial for the interface state recombination process to surpass the quantum confinement process, in good agreement with qin's prediction in qin and li [phys. rev. b 68, 85309 (2003)]. the realistic model of si ncs embedded in a sio2 matrix provides a firm theoretical support to explain the transition trend. |
| WOS关键词 | SILICON NANOCRYSTALS ; POROUS SILICON ; VISIBLE PHOTOLUMINESCENCE ; LUMINESCENCE ; EMISSION ; PASSIVATION ; FILMS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000233603700080 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2426431 |
| 专题 | 半导体研究所 |
| 通讯作者 | Wang, XX |
| 作者单位 | 1.Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China 2.Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, XX,Zhang, JG,Ding, L,et al. Origin and evolution of photoluminescence from si nanocrystals embedded in a sio2 matrix[J]. Physical review b,2005,72(19):6. |
| APA | Wang, XX.,Zhang, JG.,Ding, L.,Cheng, BW.,Ge, WK.,...&Wang, QM.(2005).Origin and evolution of photoluminescence from si nanocrystals embedded in a sio2 matrix.Physical review b,72(19),6. |
| MLA | Wang, XX,et al."Origin and evolution of photoluminescence from si nanocrystals embedded in a sio2 matrix".Physical review b 72.19(2005):6. |
入库方式： iSwitch采集
来源：半导体研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。