Cadmium Telluride (CdTe) is a binary II-VI semiconductor compound with a direct bandgap in the near-infrared region, making it a primary material for optoelectronic and radiation detection applications. The material is most widely deployed in thin-film photovoltaic (solar cell) technology, where it offers high theoretical conversion efficiency and manufactures at lower cost than silicon alternatives; CdTe is also valued in gamma-ray and X-ray detectors for medical imaging, security screening, and nuclear monitoring due to its strong photon absorption and good charge transport properties. Engineers select CdTe when bandgap energy (~1.44 eV) and radiation stopping power are critical, though environmental and health regulations around cadmium toxicity constrain its adoption in some markets and drive ongoing development of cadmium-free alternatives.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Young's Modulus(E) | 52.00 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Melting Point / Solidus(Tm) | 1,365 | K | — | ||
Thermal Conductivity(k) | 6.200 | W/(m·K) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 5.850 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.500 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 10.20 | - | — |