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Influence of a thin GaAs cap layer on structural and optical properties of InAs quantum dots

โœ Scribed by Ferdos, Fariba; Wang, Shumin; Wei, Yongqiang; Larsson, Anders; Sadeghi, Mahdad; Zhao, Qingxiang


Book ID
120929753
Publisher
American Institute of Physics
Year
2002
Tongue
English
Weight
477 KB
Volume
81
Category
Article
ISSN
0003-6951

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Optical properties of wetting layers in
โœ A.T Winzer; R Goldhahn; G Gobsch; H Heidemeyer; O.G Schmidt; K Eberl ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 95 KB

The optical transitions of the wetting layers in two-fold self-assembled InAs=GaAs quantum dot samples are studied as a function of GaAs spacer thickness by various methods. The absorption related studies by photore ectance and selective photoluminescence excitation spectroscopy reveal already for t