期刊
JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷 41, 期 19, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/41/19/195103
关键词
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资金
- National Basic Research Programme of China
- National Natural Science Foundation of China
Ultrafast photovoltaic effects with high sensitivity in both vertical and lateral directions have been observed in the TiN/Si Schottky junction. The open-circuit vertical photovoltage across the junction is 400mV under irradiation of an HeNe laser with a power of 7mW. The response speed is in the picosecond order. Furthermore, we found a large lateral photovoltage (LPV) parallel to the plane of the junction. The LPV between the two electrodes on the Si substrate of the junction depends linearly on the position of the incident laser spot. And the highest position sensitivity is 60 mV mm(-1) over the displacement of the laser spot. These characteristics indicate the potential applications of the TiN/Si junction in photodetectors and position sensitive detectors.
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