Exciton Properties of Diluted CdTe/CdMnTe Quantum Wells
WU Hui-zhen1 , YANG Ai-ling2 , WU Jian-zhong1 , LI Zheng-zhi1
1 Department of Physics, 2 Department of Electronic Engineering, Hangzhou University, Hangzhou 310028
Exciton Properties of Diluted CdTe/CdMnTe Quantum Wells
WU Hui-zhen1 ;YANG Ai-ling2 ;WU Jian-zhong1 ;LI Zheng-zhi1
1 Department of Physics, 2 Department of Electronic Engineering, Hangzhou University, Hangzhou 310028
关键词 :
71.35.Cc ,
78.55.-m ,
78.55.Et
Abstract : Optical studies of the CdTe/CdMnTe multiple quantum well structures with diluted manganese in barriers are presented. The combined measurements of photoluminescence and photoluminescence excitation allowed direct observation of the binding energies of n=l heavy- and light-hole free excitons. The quantitative approach of variation of exciton binding energies with well width and barrier potential height is given. The calculated and measured exciton binding energies are in good agreement. Photoluminescence studies also show exciton-acoustic phonon scattering dominates the broadening of the exciton line width up to T = 50 K , while T > 50 K longitudinal- optical phonon scattering contributes to the line width broadening significantly.
Key words :
71.35.Cc
78.55.-m
78.55.Et
出版日期: 1998-10-01
:
71.35.Cc
(Intrinsic properties of excitons; optical absorption spectra)
78.55.-m
(Photoluminescence, properties and materials)
78.55.Et
(II-VI semiconductors)
引用本文:
WU Hui-zhen;YANG Ai-ling;WU Jian-zhong;LI Zheng-zhi. Exciton Properties of Diluted CdTe/CdMnTe Quantum Wells[J]. 中国物理快报, 1998, 15(10): 734-736.
WU Hui-zhen, YANG Ai-ling, WU Jian-zhong, LI Zheng-zhi. Exciton Properties of Diluted CdTe/CdMnTe Quantum Wells. Chin. Phys. Lett., 1998, 15(10): 734-736.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1998/V15/I10/734
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