ELECTRON RELAXATION IN A QUANTUM DOT - SIGNIFICANCE OF MULTIPHONON PROCESSES

被引：374

作者：

INOSHITA, T

SAKAKI, H

机构：

[1] Quantum Wave Project, Research Development Corporation of Japan, Meguro-ku, Tokyo 153

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.46.7260

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electron relaxation in a GaAs quantum dot is investigated to second order in electron-phonon interactions. Calculation of relaxation rate, as a function of level separation, indicates the significant contribution of LO +/- LA processes, which create a window of rapid (subnanosecond) relaxation around the longitudinal-optical phonon energy. This result may provide a possible solution to the problem of photoluminescence degradation in small quantum dots.

引用

页码：7260 / 7263

页数：4

共 11 条

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