Hg0.5Cd0.5Se

semiconductor

· Hg0.5Cd0.5Se

Hg₀.₅Cd₀.₅Se is a narrow-bandgap II-VI semiconductor alloy combining mercury selenide and cadmium selenide, commonly used in infrared optoelectronic devices. This material is particularly valued for infrared detection and thermal imaging applications because its bandgap is tunable across the mid- to long-wavelength infrared spectrum by adjusting the mercury-cadmium ratio. It remains an important choice for high-performance IR detectors operating at cryogenic temperatures, though it competes with alternative systems like InSb and HgCdTe variants depending on wavelength range and operating temperature requirements.

infrared detectorsthermal imaging sensorsmid-wave IR (MWIR) devicescryogenic radiation detectionmilitary surveillance systemsspectroscopy instrumentation

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.8000	eV	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

Hg0.5Cd0.5Se

Electrical Properties

Regulatory Screening

Environmental

Export Control