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Atomic Force Microscopy on the Ga0.l6In0.84As0.80Sb0.20Epilayer Grown by Metalorganic Chemical Vapor Deposition |
GAO Chun-xiao1;LI Shu-wei2;YANG Jie1;LIU Bing-bing1 |
1State Key Laboratory for Superhard Materials, Jilin University, Changchun 130023
2Changchun Institute of Physics, Chinese Academy of Sciences, Changchun 130021
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Cite this article: |
GAO Chun-xiao, LI Shu-wei, YANG Jie et al 1998 Chin. Phys. Lett. 15 724-726 |
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Abstract The atomic force microscopy study was made on the quaternary Ga0.l6In0.84As0.80Sb0.20 epilayer prepared on GaSb substrate by metalorganic chemical vapor deposition. The island-like defects were found on the substrate surface pretreated chemically. With the growth process going, these island-like defects could be buried by the epilayer. In the initial stage, two-dimensional-growth-mode was followed. When the epilayer thickness reached 70nm, three-dimensional (3D)-growth-mode occurred and the perfect 3D islands were observed.
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Keywords:
61.16.Ch
68.55.Jk
68.55.Gh
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Published: 01 October 1998
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