TRANSIENT PHOTOLUMINESCENCE SPECTRA OF GaAsIAlGaAs
QUANTUM WELLS, QUANTUM WELL WIRES, AND QUANTUM WELL BOXES

Chin. Phys. Lett.

1990, Vol. 7

Issue (6): 284-287 DOI:

Original Articles

TRANSIENT PHOTOLUMINESCENCE SPECTRA OF GaAsIAlGaAs QUANTUM WELLS, QUANTUM WELL WIRES, AND QUANTUM WELL BOXES

CHENG Wenqin;HUANG Yi;ZHOU Junming;FENG Wei;WANG Hezhou¹;SHE Weilong¹;HUANG Xuguang¹;LIN Weizhu¹;YU Zhenxin¹;XU Geng²

Institute of Physics, Chinese Academy of Sciences, Beijing 100080 ¹Laboratory of Ultrafast Laser Spectrascopy, Zhongshan University, Guangzhou 510275 ²Department of Physics, Zhongshan University, Guangzhou 510275

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CHENG Wenqin, HUANG Yi, ZHOU Junming et al 1990 Chin. Phys. Lett. 7 284-287

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Abstract The interaction of the electrons with the phonons in GaAs/AlGaAs quantum wells, quantum well wires, and quantum well boxes has been studied by meansuring their time resolved photoluminescence (PL) spectra. In the quantum well (Q W) system, relaxation time of the electron energy of the narrower well is shorter than that of the wider well. It is attributed to the stronger interaction of the electrons with the interface mode phonons. In the Q W wires and Q W boxes, the shortening of the relaxation time is obvious. It is due to the stronger electron-phonon interaction caused by the reduction of screening effect. Our experiments also demonstrated the incident laser intensity dependence of the relaxation time.

Keywords: 78.65.-s 78.47.+p

Published: 01 June 1990

PACS:	78.65.-s
	78.47.+p

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1990/V7/I6/0284

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	CHENG Wenqin
	HUANG Yi
	ZHOU Junming
	FENG Wei
	WANG Hezhou
	SHE Weilong
	HUANG Xuguang
	LIN Weizhu
	YU Zhenxin
	XU Geng

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