Cu4 Hg4 Se4 Cl4

semiconductor

· Cu4 Hg4 Se4 Cl4

Cu4Hg4Se4Cl4 is a quaternary halide semiconductor compound combining copper, mercury, selenium, and chlorine in a mixed-valent framework. This is an experimental research material rather than an established commercial product; it belongs to the family of metal halide semiconductors being investigated for potential optoelectronic and photovoltaic applications, though its practical use remains largely confined to academic study. The material is notable for its complex crystal chemistry and potential band-gap tunability, but mercury content and stability concerns limit industrial adoption compared to lead-free halide perovskite alternatives.

experimental semiconductorsoptoelectronic researchphotovoltaic developmenthalide crystal physicslaboratory synthesis studiesband-gap engineering

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.1923	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3430	eV/atom	—

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.

Cu4 Hg4 Se4 Cl4

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control