Cu4 Se8 Br4

semiconductor

· Cu4 Se8 Br4

Cu4Se8Br4 is a mixed-halide copper selenide compound belonging to the family of chalcogenide semiconductors with layered or framework structures. This is primarily a research material rather than an established commercial compound; it represents an emerging class of semiconductors being investigated for tunable optoelectronic and photovoltaic properties through compositional engineering of copper, selenium, and halide components. Interest in this material family stems from their potential to offer adjustable bandgaps, solution processability, and stability advantages over all-halide perovskites or all-chalcogenide systems, making them candidates for next-generation thin-film solar cells, photodetectors, and solid-state electronics where traditional semiconductors face cost or performance limitations.

thin-film photovoltaics (research)photodetectorsoptoelectronic deviceslead-free semiconductor alternativeshalide-chalcogenide semiconductorsmaterials for scalable electronics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.03780	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.2030	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 Se8 Br4

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control