Theoretical D* Optimization of N+-p Pb<sub>1-x</sub>Sn<sub>x</sub>Se Long-Wavelength (8 - 11 μm) Photovoltaic Detector at 77 K

• DOI: 10.4236/detection.2014.21001
• Publication Date: 2014-03-28T10:10:25Z
• Authors: Binbin Weng; Jijun Qiu; Lihua Zhao; Caleb Chang; Zhisheng Shi
• Keywords: Quantum Efficiency

In this work, the study of influences lifetime, doping concentration and absorption layer thickness to resistant- area product (R0A) quantum efficiency Pb1-xSnxSe photovoltaic detector are presented. Three fundamental current mechanisms including diffusion, generation-recombination, tunneling models considered. Using optimal parameters, calculated detectivity (D*) is over 1012 cm Hz1/2/W.