Temperature dependent current-voltage characteristics of MWIR HgCdTe photodiodes operated at higher temperatures

J. Rutkowski; A. Rogalski; J. Piotrowski; A. Piotrowski

doi:10.1117/12.625793

29 September 2005 Temperature dependent current-voltage characteristics of MWIR HgCdTe photodiodes operated at higher temperatures

J. Rutkowski, A. Rogalski, J. Piotrowski, A. Piotrowski

Author Affiliations +

Proceedings Volume 5957, Infrared Photoelectronics; 59571X (2005) https://doi.org/10.1117/12.625793
Event: Congress on Optics and Optoelectronics, 2005, Warsaw, Poland

Abstract

The performance of multi-layer hetrojunction (MLHJ) HgCdTe photodiodes at high temperatures is presented. The effect of inherent and excess current mechanisms on quantum efficiency and R₀A product is analyzed. The diodes with good R₀A operability and high quantum efficiency at 200-300 K have been demonstrated at cutoff wavelengths up to 5 μm. The temperature dependence of the differential resistance is discussed. The experimental results show that proper surface passivation and low series/contact resistance are major issues relating to fabrication of HgCdTe detectors with high performance.

Citation Download Citation

J. Rutkowski, A. Rogalski, J. Piotrowski, and A. Piotrowski "Temperature dependent current-voltage characteristics of MWIR HgCdTe photodiodes operated at higher temperatures", Proc. SPIE 5957, Infrared Photoelectronics, 59571X (29 September 2005); https://doi.org/10.1117/12.625793

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