Characterization of photocurrent of mid-wavelength quantum-well infrared photodetector (MW-QWIP)

Yasuhito Uchiyama; Hironori Nishino; Yusuke Matsukura; Kazuo Ozaki; Toshio Fujii

doi:10.1117/12.542964

30 August 2004 Characterization of photocurrent of mid-wavelength quantum-well infrared photodetector (MW-QWIP)

Yasuhito Uchiyama, Hironori Nishino, Yusuke Matsukura, Kazuo Ozaki, Toshio Fujii

Proceedings Volume 5406, Infrared Technology and Applications XXX; (2004) https://doi.org/10.1117/12.542964
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

We investigated the mechanism of the photocurrent transmission in mid-wavelength quantum-well infrared photodetectors that were made using InGaAs/AlGaAs quantum wells so that their peak absorption would be at a wavelength near 5 μm. Analyzing the bias-voltage dependence of the photocurrent for the samples with different well layer thicknesses, we found that the photocurrent transmission could be accounted for by taking into account the tunneling process via the triangular barrier, the effect of the intrinsic electric field due to the unintentional impurities, and the effect of the drift velocity.

Citation Download Citation

Yasuhito Uchiyama, Hironori Nishino, Yusuke Matsukura, Kazuo Ozaki, and Toshio Fujii "Characterization of photocurrent of mid-wavelength quantum-well infrared photodetector (MW-QWIP)", Proc. SPIE 5406, Infrared Technology and Applications XXX, (30 August 2004); https://doi.org/10.1117/12.542964

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