期刊
APPLIED PHYSICS LETTERS
卷 104, 期 22, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4881139
关键词
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资金
- Chinese Natural Science Foundation [51372202, 51221001]
- State Key Laboratory of Solidification Processing [82-TZ-2013]
- 111 project [B08040]
The electronic structure of polymer-derived amorphous silicon carbide ceramics was studied by combining measurements of temperature-dependent conductivity and optical absorption. By comparing the experimental results to theoretical models, electronic structure was constructed for a carbon-rich amorphous silicon carbide, which revealed several unique features, such as deep defect energy level, wide band-tail band, and overlap between the band-tail band and defect level. These unique features were discussed in terms of the microstructure of the material and used to explain the electric behavior. (C) 2014 AIP Publishing LLC.
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