期刊
APPLIED PHYSICS EXPRESS
卷 10, 期 7, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.7567/APEX.10.075505
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资金
- Ministry of Science and Technology, Taiwan [MOST 106-2911-I-009-301]
- National Chung-Shan Institute of Science and Technology, Taiwan [NCSIST-102-V211(106)]
The growth of high-quality In0.28Ga0.72Sb epilayer on an AlSb/GaSb/GaAs heterostructure by metalorganic chemical vapor deposition is demonstrated. The In0.28Ga0.72Sb epilayer has a fully relaxed surface roughness of similar to 1.0nm and a low threading dislocation density of similar to 6.2 x 10(6)cm(-2). The valence band offset (VBO) of 3.11 eV and conduction band offset (CBO) of 3.21 eV for an Al2O3/In0.28Ga0.72Sb interface extracted from X-ray photoemission spectroscopy data highlight its suitability for use in single-channel InGaSb-based complementary metal-oxide-semiconductor (CMOS) applications. The type-I straddling gap of an In0.28Ga0.72Sb/AlSb heterojunction with a VBO of 0.47 eV and CBO of 0.65 eV is also sufficient to prevent both electron and hole leakage currents in CMOS devices. (C) 2017 The Japan Society of Applied Physics
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