Effects of dimensionality on radiative recombination lifetime of excitons in thin quantum boxes of intermediate regime between zero and two dimensions

被引:18
作者
Gotoh, H
Ando, H
Takagahara, T
Kamada, H
Chavez-Pirson, A
Temmyo, J
机构
[1] NTT, Basic Res Labs, Atsugi, Kanagawa 24301, Japan
[2] NTT, Optoelect Labs, Atsugi, Kanagawa 24301, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 1997年 / 36卷 / 6B期
关键词
quantum disks; thin quantum boxes; effects of dimensionality; radiative recombination lifetime; effects of structural defects;
D O I
10.1143/JJAP.36.4204
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report on effects of dimensionality on radiative recombination lifetime in thin quantum boxes of intermediate regime between OD and 2D. The temperature dependence of the recombination lifetime is calculated using a theoretical analysis that rigorously treats the electron-hole Coulomb interaction. We show how the dependence evolves from 2D to OD with a decrease in the lateral width of the box. We also examine the effects of exciton localization, which arises from structural defects in the boxes, on the radiative recombination lifetime. These theoretical results are compared with experimental data obtained from InGaAs quantum disks on a (311)B GaAs substrate. Good agreement between theoretical results and the experimental data is obtained.
引用
收藏
页码:4204 / 4208
页数:5
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