Temperature dependence of the optical properties of inas/gaas self-organized quantum dots with bimodal size distribution
文献类型：期刊论文
| 作者 | Wang, HL; Ning, D; Feng, SL |
| 刊名 | Journal of crystal growth
 |
| 出版日期 | 2000-02-01 |
| 卷号 | 209期号:4页码:630-636 |
| 关键词 | Self-organized quantum dots Inas/gaas Mbe Pl Stm Bimodal size distribution |
| ISSN号 | 0022-0248 |
| 通讯作者 | Wang, hl() |
| 英文摘要 | In this work we report the optical and microscopic properties of self-organized inas/gaas quantum dots grown by molecular beam epitaxy on (1 0 0) oriented gaas substrates. a distinctive double-peak feature of the pl spectra from quantum dots has been observed, and a bimodal distribution of dot sizes has also been confirmed by scanning tunneling microscopy (stm) image for uncapped sample. the power-dependent photoluminescence (pl) study demonstrates that the distinctive pl emission peaks are associated with the ground-state emission of islands in different size branches. the temperature-dependent pl study shows that the pl quenching temperature for different dot families is different. it is shown that the coupling between quantum dots plays a key role in unusual temperature dependence of qd photoluminescence. in addition, we have tuned the emission wavelength of inas qds to 1.3 mu m at room temperature. (c) 2000 elsevier science b.v. all rights reserved. |
| WOS关键词 | MOLECULAR-BEAM EPITAXY ; ELECTRONIC-STRUCTURE ; CARRIER RELAXATION ; GROWTH ; PHOTOLUMINESCENCE ; TRANSITION |
| WOS研究方向 | Crystallography ; Materials Science ; Physics |
| WOS类目 | Crystallography ; Materials Science, Multidisciplinary ; Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000085508500010 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2428927 |
| 专题 | 半导体研究所 |
| 通讯作者 | Wang, HL |
| 作者单位 | 1.Chinese Acad Sci, Inst Semicond, Natl Lab Superlattices & Microstruct, Beijing 100083, Peoples R China 2.Qufu Normal Univ, Dept Phys, Qufu 273165, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, HL,Ning, D,Feng, SL. Temperature dependence of the optical properties of inas/gaas self-organized quantum dots with bimodal size distribution[J]. Journal of crystal growth,2000,209(4):630-636. |
| APA | Wang, HL,Ning, D,&Feng, SL.(2000).Temperature dependence of the optical properties of inas/gaas self-organized quantum dots with bimodal size distribution.Journal of crystal growth,209(4),630-636. |
| MLA | Wang, HL,et al."Temperature dependence of the optical properties of inas/gaas self-organized quantum dots with bimodal size distribution".Journal of crystal growth 209.4(2000):630-636. |
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来源：半导体研究所
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