Study of optical properties in GaAs1-xSbx/GaAs single quantum wells
文献类型：期刊论文
| 作者 | Luo XD ; Bian LF ; Xu ZY ; Luo HL ; Wang YQ ; Wang JN ; Ge WK |
| 刊名 | acta physica sinica
 |
| 出版日期 | 2003 |
| 卷号 | 52期号:7页码:1761-1765 |
| 关键词 | GaAsSb/GaAs selectively-excited type II transition ROOM-TEMPERATURE GAAS DOTS OPERATION |
| ISSN号 | 1000-3290 |
| 通讯作者 | luo xd,chinese acad sci,inst semicond,state key lab superlattices & microstruct,beijing 100083,peoples r china. |
| 中文摘要 | gaassb/gaas single quantum wells (sqws) grown by molecular beam epitaxy are studied by selectively-excited photoluminescence (sepl) measurement. for the first time, we have simultaneously observed the pl, from both type i and type ii transitions in gaassb/gaas heterostructure in the sepl. the two transitions exhibit different pl, behaviours under different excitation energy. as expected, the peak energy of type i emission remains constant in the whole excitation energy range we used, while type u transition shows a significant blue shift with increasing excitation energy. the observed blue shift is well explained in terms of electron-hole charge separation model at the interface. time-resolved(tr) pl exhibits more type 11 characteristic of gaassb/gaas qw. moreover, the results of the excitation-power-dependent pl and trpl provide more direct information on the type-ii nature of the band alignment in gaassb/gaas quantum-well structures. by combining the experimental results with some simple calculations, we have obtained the strained and unstrained valence band offsets of q(v) = 1.145 and q(v)(0) = 0. 76 in our samples, respectively. |
| 学科主题 | 半导体物理 |
| 收录类别 | SCI |
| 语种 | 中文 |
| 公开日期 | 2010-08-12 |
| 源URL | [http://ir.semi.ac.cn/handle/172111/11522]  |
| 专题 | 半导体研究所_中国科学院半导体研究所（2009年前） |
| 推荐引用方式 GB/T 7714 | Luo XD,Bian LF,Xu ZY,et al. Study of optical properties in GaAs1-xSbx/GaAs single quantum wells[J]. acta physica sinica,2003,52(7):1761-1765. |
| APA | Luo XD.,Bian LF.,Xu ZY.,Luo HL.,Wang YQ.,...&Ge WK.(2003).Study of optical properties in GaAs1-xSbx/GaAs single quantum wells.acta physica sinica,52(7),1761-1765. |
| MLA | Luo XD,et al."Study of optical properties in GaAs1-xSbx/GaAs single quantum wells".acta physica sinica 52.7(2003):1761-1765. |
入库方式： OAI收割
来源：半导体研究所
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