DLTS SPECTRA OF InAs/GaAs SELF-ASSEMBLED QUANTUM DOTS

Yang Xizhen; Chen Feng; Feng Songlin

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DLTS SPECTRA OF InAs/GaAs SELF-ASSEMBLED QUANTUM DOTS

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- DLTS SPECTRA OF InAs/GaAs SELF-ASSEMBLED QUANTUM DOTS
- Chinese Journal of Luminescence Vol. 18, Issue 4, Pages: 357-359(1997)
- 作者机构：
  
  1. 北京师范大学物理系北京,100875
  2. 半导体超晶格国家重点实验室北京,100083
  3. 中国科学院半导体研究所北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC： O471
- Published：30 November 1997
- 稿件说明：
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杨锡震, 陈枫, 封松林. InAs/GaAs自组织量子点的DLTS谱[J]. 发光学报, 1997,18(4): 357-359

Yang Xizhen, Chen Feng, Feng Songlin. DLTS SPECTRA OF InAs/GaAs SELF-ASSEMBLED QUANTUM DOTS[J]. Chinese Journal of Luminescence, 1997,18(4): 357-359
杨锡震, 陈枫, 封松林. InAs/GaAs自组织量子点的DLTS谱[J]. 发光学报, 1997,18(4): 357-359 DOI：

Yang Xizhen, Chen Feng, Feng Songlin. DLTS SPECTRA OF InAs/GaAs SELF-ASSEMBLED QUANTUM DOTS[J]. Chinese Journal of Luminescence, 1997,18(4): 357-359 DOI：

摘要

将DLTS用于对InAs/GaAsQD结构样品的测量

测定了QD能级发射载流子的热激活能;获得了QD能级俘获电子过程伴随有多声子发射(MPE)、QD能级存在一定程度的展宽、以及在某些特定的生长条件下

存在亚稳生长构形的实验证据.结果表明:DLTS在QD体系的研究中有其特有的功能

Abstract

Deep Level Transient Spectroscopy (DLTS) technique has been used for measurement of the samples containing InAs/GaAs self-assembled Quantum Dots (QDs).The thermal activated energies of carrier emissions have been determined for the relevant levels.It has been found that Multi-Phonon Emission (MPE) is accompanied with the electron capture process of the QD level

there exists broadenning in the QD levels

and there is metastable growth configuration under some special conditions.The results show that DLTS has its peculiar functions in the study of QD systems.

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