Defects and performance of CdTe and CZT detectors

Abstract Cadmium Telluride and Cadmium Zinc Telluride detectors are used in various environments in high-energy, nuclear, medical and astrophysics. They are high-Z materials and have high interaction probability with high energy X-rays and gamma rays. However, the crystal properties, especially various defects have impact on the charge collection efficiency. In this paper we studied the response of the crystallographic defects to estimate their impact on detector performance.