高级检索   注册
SEMI OpenIR  > 中国科学院半导体研究所(2009年前)  > 期刊论文

题名: Dependence of optical properties on the structure of multi-layer self-organized InAs quantum dots emitting near 1.3 mu m
作者: Meng XQ;  Xu B;  Jin P;  Ye XL;  Zhang ZY;  Li CM;  Wang ZG
发表日期: 2002
摘要: Self-organized InAs quantum dots (QDs) have been fabricated by molecular beam epitaxy and characterized by photoluminescence (PL). For both single- and multi-layer QDs, PL intensity of the first excited state is larger than that of the ground state at 15 K. Conversely, at room temperature (RT), PL intensity of the first excited state is smaller than that of the ground state. This result is explained by the phonon bottleneck effect. To the ground state, the PL intensities of the multi-layer QDs are larger than that of the single-layer QDs at 15 K, while the intensities are smaller than that of the single-layer QDs at RT. This is due to the defects in the multi-layer QD samples acting as the nonradiative recombination centers. The inter-diffusion of Ga and In atoms in the growth process of multi-layer QDs results in the PL blueshift of the ground state and broadening of the full-width at half-maximum (FWHM), which can be avoided by decreasing the spacers' growth temperature. At the spacers' growth temperature of 520degreesC, we have prepared the 5-layer QDs which emit near 1.3 mum with a FWHM of 31.7 meV at RT, and 27.9 meV at 77 K. (C) 2002 Published by Elsevier Science B.V.
KOS主题词: atomic layer deposition;  Quantum dots;  Photoluminescence
刊名: JOURNAL OF CRYSTAL GROWTH
专题: 中国科学院半导体研究所(2009年前)_期刊论文

条目包含的文件

文件 大小格式
1656.pdf175KbAdobe PDF 联系获取全文


许可声明:条目相关作品遵循知识共享协议(Creative Commons)。


推荐引用方式:
Meng XQ; Xu B; Jin P; Ye XL; Zhang ZY; Li CM; Wang ZG .Dependence of optical properties on the structure of multi-layer self-organized InAs quantum dots emitting near 1.3 mu m ,JOURNAL OF CRYSTAL GROWTH,2002,243 (3-4):432-438
个性服务
 推荐该条目
 保存到收藏夹
 查看访问统计
 Endnote导出
Google Scholar
 Google Scholar中相似的文章
 [Meng XQ]的文章
 [Xu B]的文章
 [Jin P]的文章
CSDL跨库检索
 CSDL跨库检索中相似的文章
 [Meng XQ]的文章
 [Xu B]的文章
 [Jin P]的文章
Scirus search
 Scirus中相似的文章
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。

 

 

Valid XHTML 1.0! 版权所有 © 2007-2012  中国科学院半导体研究所  -反馈
系统开发与技术支持:中国科学院国家科学图书馆兰州分馆(信息系统部)
本系统基于 MIT 和 Hewlett-Packard 的 DSpace 软件开发