Hg4As2CdI4

semiconductor
· Hg4As2CdI4

Hg₄As₂CdI₄ is a quaternary semiconductor compound combining mercury, arsenic, cadmium, and iodine—a member of the mixed-metal halide and chalcogenide family explored for infrared and radiation detection applications. This is primarily a research material rather than a commercialized product; compounds in this class are investigated for their potential as wide-bandgap or narrow-bandgap semiconductors sensitive to infrared radiation or ionizing radiation. The combination of heavy elements (Hg, Cd) with a halide/pnictide backbone makes it a candidate for specialized sensing and detection where conventional semiconductors (Si, GaAs) fall short, though synthesis complexity and toxicity concerns limit practical adoption compared to more established detector materials.

infrared detectorsradiation sensingresearch semiconductorsnuclear/gamma detectionspecialized optoelectronics

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Band Gap(Eg)
—
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.