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Browse Conference Publications > Nanotechnology, 2005. 5th IEE ... Help

Self-assembled In0.22Ga0.78As quantum dots grown on GaAs/Ge/SixGe1-x/Si substrate

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4 Author(s)
Hsieh, Y.C. ; Dept. of Mater. Sci. & Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Luo, G.L. ; Biswas, Dhrubes ; Chang, E.Y.

Self-assembled In0.22Ga0.78As quantum dots (QDs) fabricated on Si substrate with Ge buffer by metal organic vapor phase epitaxy (MOVPE) were investigated. Transmission electron microscopy (TEM) and atomic force microscopy (AFM) images were used to observe the size and distribution of the In0.22Ga0.78As QDs grown on the GaAs/Ge/GeSi/Si layer structure. The influence of the growth temperature on the QDs density and distribution was investigated. For QDs grown at 430 °C, the density of the In0.22Ga0.78As dots was estimated to be 1×1011 cm-2 and the In0.22Ga0.78As QDs thickness was 5 monolayer thick.

Published in:
Nanotechnology, 2005. 5th IEEE Conference on

Date of Conference: 11-15 July 2005

Page(s):
414 - 417 vol. 1
Print ISBN:
0-7803-9199-3
INSPEC Accession Number:
8681867
Digital Object Identifier :
10.1109/NANO.2005.1500785
Product Type:
Conference Publications

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