期刊
SUPERLATTICES AND MICROSTRUCTURES
卷 37, 期 6, 页码 365-372出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.spmi.2004.11.002
关键词
quantum dot; longitudinal optical and surface optical phonons
Electron-phonon effects on the two first electronic states in both CdS and GaAs quantum dots are investigated. Both confined longitudinal optical (LO) and surface optical (SO) phonons are considered. We use the intermediate-type variational approach. We find that, shifts caused by phonon contribution on electronic energies are more significant for US quantum dot. We find, also, that, contrary to GaAs based quantum dots, we shouldn't neglect the SO phonon contribution for CdS based ones, especially for small dots. (c) 2004 Elsevier Ltd. All rights reserved.
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