Physics and Applications of Unipolar Barriers in Infrared (IR) Detectors
Technical Report,01 Oct 2014,29 Dec 2015
University of Rochester Rochester United States
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A recently invented, advanced, high performance infrared detector is the Unipolar Barrier detector. In this program, the effects of defects and surface currents on the performance of the detectors were investigated with modeling and experiment. In comparison to conventional pn-based infrared detectors, it was found that unipolar barrier detectors are dramatically less sensitive to performance degradation by defects. Surface conduction in infrared semiconducting materials was examined. The mechanisms of surface leakage in unipolar barrier detectors were investigated. A new implementation of unipolar barriers for infrared detection was demonstrated in a flat-band pn-based unipolar barrier detector.
- Infrared Detection and Detectors
- Electrooptical and Optoelectronic Devices