期刊
APPLIED PHYSICS LETTERS
卷 112, 期 5, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5017616
关键词
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资金
- National Science Foundation [DMR-1755479]
This paper presents the homoepitaxy of Si-doped beta-Ga2O3 thin films on semi-insulating (010) and (001) Ga2O3 substrates via low pressure chemical vapor deposition with a growth rate of >= 1 mu m/h. Both high resolution scanning transmission electron microscopy and X-ray diffraction measurements demonstrated high crystalline quality homoepitaxial growth of these thin films. Atomic resolution STEM images of the as-grown beta-Ga2O3 thin films on (010) and (001) substrates show high quality material without extended defects or dislocations. The charge carrier transport properties of the as-grown Si-doped beta-Ga2O3 thin films were characterized by the temperature dependent Hall measurement using van der Pauw patterns. The room temperature carrier concentrations achieved for the (010) and (001) homoepitaxial thin films were similar to 1.2 x 10(18) cm(-3) and similar to 9.5 x 10(17) cm(-3) with mobilities of similar to 72 cm(2)/V s and similar to 42 cm(2)/V s, respectively. Published by AIP Publishing.
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