Theoretical Modeling of HOT HgCdTe Barrier Detectors for the Mid-Wave Infrared Range
- First Online:
- Cite this article as:
- Martyniuk, P., Gawron, W. & Rogalski, A. Journal of Elec Materi (2013) 42: 3309. doi:10.1007/s11664-013-2737-2
- 484 Downloads
This paper reports on theoretical modeling of medium-wavelength infrared HgCdTe barrier infrared detector (BIRD) photoelectrical performance. BIRD HgCdTe detectors were simulated with the commercially available software APSYS. Detailed analysis of the detector performance such as dark current, photocurrent, resistance–area product, detectivity versus applied bias, operating temperature, and structural parameters (absorber doping, barrier composition) was performed to determine the optimal operating conditions. It is shown that higher operation temperature conditions achievable with commonly used thermoelectric coolers allow detectivities of D = 9.5 × 1010 cmHz1/2/W and D* = 1.5 × 1011 cmHz1/2/W at T = 200 K to be obtained for the correct absorber doping for nBnnn+ and nBnpn+, respectively. R0A for the nBnnn+ detector was found to range from 200 Ω cm2 to 0.6 Ω cm2 at T = 200 K to 300 K, respectively.
KeywordsHgCdTe unipolar barrier nBnn(p) nBnn(p)n+ Auger suppression photoelectric gain
Open AccessThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.