Numerical analysis of long wavelength infrared HgCdTe photodiodes

Kocer H., Arslan Y., BEŞİKCİ C.

INFRARED PHYSICS & TECHNOLOGY, cilt.55, sa.1, ss.49-55, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 55 Konu: 1
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.infrared.2011.09.002
  • Sayfa Sayıları: ss.49-55


We present a detailed investigation of the performance limiting factors of long and very long wavelength infrared (LWIR and VLWIR) p on n Hg1-xCdxTe detectors through numerical simulations at 77 K incorporating all considerable generation-recombination (G-R) mechanisms including trap assisted tunneling (TAT), Shockley-Read-Hall (SRH), Auger and radiative processes. The results identify the relative strengths of the dark current generation mechanisms by numerically extracting the contribution of each G-R mechanism to the detector characteristics with various cut-off wavelengths (lambda(c)) and practically achievable material parameters.