Author:
Li Li-Gong,Liu Shu-Man,Luo Shuai,Yang Tao,Wang Li-Jun,Liu Feng-Qi,Ye Xiao-Ling,Xu Bo,Wang Zhan-Guo
Abstract
Abstract
InAs/GaSb type II superlattices were grown on (100) GaSb substrates by metalorganic chemical vapor deposition (MOCVD). A plane of mixed As and Sb atoms connecting the InAs and GaSb layers was introduced to compensate the tensile strain created by the InAs layer in the SL. Characterizations of the samples by atomic force microscopy and high-resolution X-ray diffraction demonstrate flat surface morphology and good crystalline quality. The lattice mismatch of approximately 0.18% between the SL and GaSb substrate is small compared to the MOCVD-grown supperlattice samples reported to date in the literature. Considerable optical absorption in 2- to 8-μm infrared region has been realized.
PACS: 78.67.Pt; 81.15.Gh; 63.22.Np; 81.05.Ea
Publisher
Springer Science and Business Media LLC
Subject
Condensed Matter Physics,General Materials Science
Cited by
30 articles.
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