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题名: Spin-Polarized Localized Exciton Photoluminescence Dynamics in GaInNAs Quantum Wells
作者: Lu SL (Lu, Shulong);  Nosho H (Nosho, Hidetaka);  Tackeuchi A (Tackeuchi, Atsushi);  Bian LF (Bian, Lifeng);  Dong JR (Dong, Jianrong);  Niu ZC (Niu, Zhichuan)
发表日期: 2009
摘要: We have investigated spin polarization-related localized exciton photoluminescence (PL) dynamics in GaInNAs quantum wells by time-resolved PL spectroscopy. The emission energy dependence of PL polarization decay time as well as polarization-independent PL decay time suggests that the acoustic phonon scattering in the process of localized exciton transfer from the high-energy localized states to the low-energy ones dominates the PL polarization relaxation. By increasing the excitation power from 1 to 10 mW, the PL polarization decay time is changed from 0.17 to more than 1 ns, which indicates the significant effect of the trapping of localized electrons by nonradiative recombination centers. These experimental findings indicate that the spin-related PL polarization in diluted nitride semiconductors can be manipulated through carrier scattering and recombination process. (C) 2009 The Japan Society of Applied Physics
KOS主题词: Alloys
刊名: JAPANESE JOURNAL OF APPLIED PHYSICS
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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推荐引用方式:
Lu, SL (Lu, Shulong); Nosho, H (Nosho, Hidetaka); Tackeuchi, A (Tackeuchi, Atsushi); Bian, LF (Bian, Lifeng); Dong, JR (Dong, Jianrong); Niu, ZC (Niu, Zhichuan) .Spin-Polarized Localized Exciton Photoluminescence Dynamics in GaInNAs Quantum Wells ,JAPANESE JOURNAL OF APPLIED PHYSICS,OCT 2009 ,48(10):Art.No.100206
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