Effects of accumulated strain on the surface and optical properties of stacked 1.3 mu m inas/gaas quantum dot structures
文献类型：期刊论文
| 作者 | Yang, Tao1; Tatebayashi, Jun2; Nishioka, Masao2; Arakawa, Yasuhiko2 |
| 刊名 | Physica e-low-dimensional systems & nanostructures
 |
| 出版日期 | 2008-04-01 |
| 卷号 | 40期号:6页码:2182-2184 |
| 关键词 | Inas quantum dots Lasers Mocvd |
| ISSN号 | 1386-9477 |
| DOI | 10.1016/j.physe.2007.10.101 |
| 通讯作者 | Yang, tao() |
| 英文摘要 | We report the effects of accumulated strain by stacking on the surface and optical properties of stacked 1.3 mu m inas/gaas quantum dot (qd) structures grown by mocvd. it is found that the surface of the stacked qd structures becomes more and more undulated with stacking, due to the increased strain in the stacked qd structures with stacking. the photoluminescence intensity from the qd structures first increases as the stacking number increases from 1 to 3 and then dramatically decreases as it further increases, implying a significant increase in the density of crystal defects in the stacked qd structures due to the accumulated strain. furthermore, we demonstrate that the strain can be reduced by simply introducing annealing steps just after growing the gaas spacers during the deposition of the stacked qd structures, leading to significant improvement in the surface and optical properties of the structures. (c) 2007 elsevier b.v. all rights reserved. |
| WOS研究方向 | Science & Technology - Other Topics ; Physics |
| WOS类目 | Nanoscience & Nanotechnology ; Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000255717400127 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2427447 |
| 专题 | 半导体研究所 |
| 通讯作者 | Yang, Tao |
| 作者单位 | 1.Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China 2.Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan |
| 推荐引用方式 GB/T 7714 | Yang, Tao,Tatebayashi, Jun,Nishioka, Masao,et al. Effects of accumulated strain on the surface and optical properties of stacked 1.3 mu m inas/gaas quantum dot structures[J]. Physica e-low-dimensional systems & nanostructures,2008,40(6):2182-2184. |
| APA | Yang, Tao,Tatebayashi, Jun,Nishioka, Masao,&Arakawa, Yasuhiko.(2008).Effects of accumulated strain on the surface and optical properties of stacked 1.3 mu m inas/gaas quantum dot structures.Physica e-low-dimensional systems & nanostructures,40(6),2182-2184. |
| MLA | Yang, Tao,et al."Effects of accumulated strain on the surface and optical properties of stacked 1.3 mu m inas/gaas quantum dot structures".Physica e-low-dimensional systems & nanostructures 40.6(2008):2182-2184. |
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来源：半导体研究所
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