AlGaAs optical phonon replicas in the photoluminescence spectra of GaAs layer in an Al0.3Ga0.7As/GaAs heterostructure

Please use this identifier to cite or link to this item: https://doi.org/10.1016/0038-1098(96)00158-5

Title:	AlGaAs optical phonon replicas in the photoluminescence spectra of GaAs layer in an Al0.3Ga0.7As/GaAs heterostructure
Authors:	Chua, S.J. Xu, S.J. Tang, X.H.
Keywords:	A. heterojunctions A. semiconductors D. electron-phonon interactions D. phonons E. luminescence
Issue Date:	Jun-1996
Citation:	Chua, S.J., Xu, S.J., Tang, X.H. (1996-06). AlGaAs optical phonon replicas in the photoluminescence spectra of GaAs layer in an Al0.3Ga0.7As/GaAs heterostructure. Solid State Communications 98 (12) : 1053-1056. ScholarBank@NUS Repository. https://doi.org/10.1016/0038-1098(96)00158-5
Abstract:	We report the observation of AlGaAs optical phonon replicas in the photoluminescence spectra from GaAs layer of an Al0.3Ga0.7As/GaAs heterostructure at low temperature. The AlAs-like transverse and longitudinal optical modes of Al0.3Ga0.7As alloy are observed by using excitation light with 488 nm wavelength. Also, the replicas involving one and two GaAs-like longitudinal optical phonons are observed when the excitation light used is He-Ne laser with 632.8 nm wavelength. The phonon energies determined from our measurement are in agreement within 10% with those expected. Copyright © 1996 Published by Elsevier Science Ltd.
Source Title:	Solid State Communications
URI:	http://scholarbank.nus.edu.sg/handle/10635/80287
ISSN:	00381098
DOI:	10.1016/0038-1098(96)00158-5
Appears in Collections:	Staff Publications

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