Cadmium zinc telluride is an alloy of zinc telluride and cadmium telluride. It has a high electro-optic coefficient and transparency in the mid-infrared region. It is a direct bandgap semiconductor used in a number of applications. It posseses lowest thermal conductivity among all semiconductors, which make it difficult to obtain planar solid-liquid interface required for single crystal growth.
Cadmium zinc telluride finds applications in the following:
- Radiation detectors
- Photorefractive gratings
- Electro-optic modulators
- Infrared lasers
- Solar cells
- Terahertz generation and detection.
The chemical properties of cadmium zinc telluride are provided in the table below:
||Cadmium – 12
Zinc – 12
Tellurium – 16
The electrical properties of cadmium zinc telluride are provided in the table below:
||14.4 to 2.2 eV
||>1x102 Ω cm-1
Mechanical and Optical Properties
The mechanical and optical properties of cadmium zinc telluride are provided in the tables below:
|GHS Hazard Statements
||H332 - Harmful if inhaled
H334 - May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335 - May cause respiratory irritation
H372 - Causes damage to organs through prolonged or repeated exposure.
||P233 - Keep container tightly closed
P264 - Wash hands thoroughly after handling
P280 - Wear protective gloves/protective clothing/eye protection/face protection
P341 - If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.