CZT

CZT


Cadmium zinc telluride is an inorganic compound of cadmium, zinc and tellurium, manufactured by Vital Materials, with the chemical formula CdZnTe (CZT). It is used in a variety of applications, including solar cells, modulators, radiation detectors and photorefractive gratings. The band gap typically varies from approximately 1.4 to 2.2 eV, depending on composition.

The cadmium zinc telluride detector is the third generation detector after the gas glow discharge detector and the scintillating crystal detector. It is internationally recognized as the best room temperature detector for detecting energy within the range of 20~800keV rays.
Detectors using CZT for radiation applications can operate in direct-conversion (or photoconductive) mode at room temperature. Advantages include high sensitivity for x-rays and gamma-rays and better energy resolution than scintillator detectors. Vital Materials also produces CZT in a variety of shapes for different radiation-detecting applications, as well as a variety of electrode geometries, to improve energy resolution.

Applications
  • Gamma-ray Spectroscopy
  • X-ray Imaging
  • X-ray Diffraction
  • Medical Diagnosis
  • Position Sensing
Physical Properties
Diameter ≥100 mm
Single Crystal size ≥2000 mm3
Composition deviation ≤5%
Resistivity ≥1×1010Ωcm
Electron mobility-lifetime product ≥2×10-3cm2/V