Hg0.7Cd0.3Te

semiconductor

· Hg0.7Cd0.3Te

Hg₀.₇Cd₀.₃Te is a narrow-bandgap semiconductor alloy within the mercury cadmium telluride (HgCdTe) family, engineered by tuning the cadmium fraction to achieve infrared sensitivity in the mid-wavelength infrared (MWIR) region. This material is the industry standard for thermal imaging, night vision, and infrared spectroscopy applications, chosen for its direct bandgap tuneability, high carrier mobility, and sensitivity to wavelengths where competing materials (InSb, uncooled bolometers) are less practical or cost-effective. HgCdTe detectors dominate military, aerospace, and scientific imaging markets where performance and wavelength specificity justify its higher cost and more demanding fabrication requirements.

infrared imaging sensorsthermal imaging camerasmilitary night visionaerospace reconnaissancespectroscopy detectorsradiometry instrumentation

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.3500	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.

Hg0.7Cd0.3Te

Electrical Properties

Regulatory Screening

Environmental

Export Control