Thermal activation and thermal transfer of localized excitons in InAs self-organized quantum dots
文献类型：期刊论文
| 作者 | Xu ZY ; Lu ZD ; Yuan ZL ; Yang XP ; Zheng BZ ; Xu JZ ; Ge WK ; Wang Y ; Wang J ; Chang LL |
| 刊名 | superlattices and microstructures
 |
| 出版日期 | 1998 |
| 卷号 | 23期号:2页码:381-387 |
| 关键词 | InAs/GaAs quantum dots INGAAS/GAAS RELAXATION GROWTH WELLS PHOTOLUMINESCENCE |
| ISSN号 | 0749-6036 |
| 通讯作者 | xu zy,chinese acad sci,inst semicond,nlsm,pob 912,beijing 100083,peoples r china. |
| 中文摘要 | we have investigated the temperature dependence of photoluminescence (pl) properties of a number of inas/gaas heterostructures with inas layer thickness ranging from 0.5 monolayer (ml) to 3 ml. the temperature dependence of the inas exciton energy and linewidth was found to display a significant difference when the inas layer thickness is smaller or larger than the critical thickness around 1.7 ml, indicating spontaneous formation of quantum dots (qds). a model, involving exciton recombination and thermal activation and transfer, is proposed to explain the experimental data. in the pl thermal quenching study, the measured thermal activation energies of different samples demonstrate that the inas wetting layer may act as a barrier for thermionic emission of carriers in high quality inas multilayers, while in inas monolayers and submonolayers the carriers are required to overcome the gaas barrier to thermally escape from the localized states. (c) 1998 academic press limited. |
| 学科主题 | 半导体物理 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2010-08-12 |
| 源URL | [http://ir.semi.ac.cn/handle/172111/13258]  |
| 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 | Xu ZY,Lu ZD,Yuan ZL,et al. Thermal activation and thermal transfer of localized excitons in InAs self-organized quantum dots[J]. superlattices and microstructures,1998,23(2):381-387. |
| APA | Xu ZY.,Lu ZD.,Yuan ZL.,Yang XP.,Zheng BZ.,...&Chang LL.(1998).Thermal activation and thermal transfer of localized excitons in InAs self-organized quantum dots.superlattices and microstructures,23(2),381-387. |
| MLA | Xu ZY,et al."Thermal activation and thermal transfer of localized excitons in InAs self-organized quantum dots".superlattices and microstructures 23.2(1998):381-387. |
入库方式： OAI收割
来源：半导体研究所
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