Cd₀.₃Hg₀.₇Te is a cadmium-mercury telluride ternary semiconductor alloy, part of the II-VI compound semiconductor family widely used in infrared detection and imaging. This material is the primary detector medium in long-wavelength infrared (LWIR) applications, where its tunable bandgap—controlled by cadmium-to-mercury ratio—enables detection across the 8–14 μm atmospheric window and beyond. Engineers select this alloy over alternatives like InSb or bolometers because it offers superior sensitivity, quantum efficiency, and room-temperature or modestly cooled operation in thermal imaging, military surveillance, medical thermography, and scientific spectroscopy; however, cadmium and mercury toxicity require careful handling and specialized manufacturing.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.2700 | eV | — |