A piezomodulated reflectance study of InAs/GaAs surface quantum dots
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Published:2006
Issue:9
Volume:55
Page:4934
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ISSN:1000-3290
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Container-title:Acta Physica Sinica
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language:
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Short-container-title:Acta Phys. Sin.
Author:
Yu Chen-Hui ,Wang Chong ,Gong Qian ,Zhang Bo ,Lu Wei ,
Abstract
Piezomodulated reflectance (PzR) spectra have been measured for two samples of InAs surface quantum dots (SQDs) deposited on GaAs (311)B substrates with In0.35Ga0.65As template. At 77K multiple confined-state SQDs transitions can be clearly resolved from the PzR spectra . The detailed optical transition features of SQDs, QDs buried by capping layer, In0.35Ga0.65As template and GaAs substrate layers were obtained from well-fitted PzR spectra using the first or third derivative of a Lorentz line shape. Differences between PzR results of two samples were discussed qualitatively.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Cited by
1 articles.
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