期刊
APPLIED PHYSICS LETTERS
卷 108, 期 17, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4947085
关键词
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资金
- National Natural Science Foundation of China [61574113, 11505140]
- Fundamental Research Funds for the Central Universities of China [xkjc2014011]
The pulse radiation detectors are sorely needed in the fields of nuclear reaction monitoring, material analysis, astronomy study, spacecraft navigation, and space communication. In this work, we demonstrate a nanosecond X-ray detector based on ZnO single crystal semiconductor, which emerges as a promising compound-semiconductor radiation detection material for its high radiation tolerance and advanced large-size bulk crystal growth technique. The resistivity of the ZnO single crystal is as high as 10(13) Omega cm due to the compensation of the donor defects (V-O) and acceptor defects (V-Zn and O-i) after high temperature annealing in oxygen. The photoconductive X-ray detector was fabricated using the high resistivity ZnO single crystal. The rise time and fall time of the detector to a 10 ps pulse electron beam are 0.8 ns and 3.3 ns, respectively, indicating great potential for ultrafast X-ray detection applications. Published by AIP Publishing.
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