期刊
CHINESE PHYSICS B
卷 20, 期 11, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1674-1056/20/11/116101
关键词
band alignment; Ga2O3/6H-SiC; synchrotron radiation photoelectron spectroscopy
资金
- National Natural Science Foundation of China [50702071, 50772122, 51002176]
A high-quality Ga2O3 thin film is deposited on an SiC substrate to form a heterojunction structure. The band alignment of the Ga2O3/6H-SiC heterojunction is studied by using synchrotron radiation photoelectron spectroscopy. The energy band diagram of the Ga2O3/6H-SiC heterojunction is obtained by analysing the binding energies of Ga 3d and Si 2p at the surface and the interface of the heterojunction. The valence band offset is experimentally determined to be 2.8 eV and the conduction band offset is calculated to be 0.89 eV, which indicate a type-II band alignment. This provides useful guidance for the application of Ga2O3/6H-SiC electronic devices.
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