期刊
APPLIED PHYSICS LETTERS
卷 109, 期 19, 页码 -出版社
AIP Publishing
DOI: 10.1063/1.4967177
关键词
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资金
- SHINES, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Basic Energy Sciences [SC0012670]
An electrically pumped ultraviolet random laser based on an Au-ZnO nanowire Schottky junction on top of a SiO2/SiNx distributed Bragg reflector (DBR) has been fabricated. Electrical characterization shows typical Schottky diode current-voltage characteristics. Evident random lasing behavior is observed from electroluminescence measurement at room temperature. In comparison with a reference device having similar nanowire morphology but no DBR, this laser demonstrates almost 1.8 times reduction in threshold current and 4 times enhancement in output power. The performance enhancement originates from the incorporation of the DBR structure, which provides high reflectivity in the designed wavelength range. Published by AIP Publishing.
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