Proper definition of spin current in spin-orbit coupled systems
文献类型：期刊论文
| 作者 | Shi, JR ; Zhang, P ; Xiao, D ; Niu, Q |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2006 |
| 卷号 | 96期号:7 |
| ISSN号 | 0031-9007 |
| 关键词 | SEMICONDUCTORS SPINTRONICS |
| 通讯作者 | Shi, JR (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | Bright blue-violet photoluminescence centered at 428 nm was obtained in amorphous Si-in-SiNx thin films prepared in a cyclic growth mode on cool substrates by plasma-enhanced chemical vapor deposition, in which the typical size of the silicon particles has been brought down to similar to 1.80 nm and the number density amounts to 1.07x10(13) cm(2). A maximum external quantum efficiency over 3.0% was measured in the as-deposited samples. Time-resolved photoluminescence spectra revealed decay times within nanosecond even at room temperature, disclosing a fast recombination dynamics in this amorphous system. The excellent efficiency can be attributed to a better passivation of the silicon particles-hence, the conventional rapid thermal annealing has a negligible effect on the photoluminescence intensity-and also to an improved transparency of the film by cyclic growth. The high-efficiency, tunable wavelength and nanosecond decay time at room temperature, achieved via a low-temperature process without invoking any posttreatment, combine to make the Si-in-SiNx system a promising candidate for light-emitting nanostructures in photonic and optoelectronic applications. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51525]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Shi, JR,Zhang, P,Xiao, D,et al. Proper definition of spin current in spin-orbit coupled systems[J]. PHYSICAL REVIEW LETTERS,2006,96(7). |
| APA | Shi, JR,Zhang, P,Xiao, D,&Niu, Q.(2006).Proper definition of spin current in spin-orbit coupled systems.PHYSICAL REVIEW LETTERS,96(7). |
| MLA | Shi, JR,et al."Proper definition of spin current in spin-orbit coupled systems".PHYSICAL REVIEW LETTERS 96.7(2006). |
入库方式： OAI收割
来源：物理研究所
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