Bi4 Br12

semiconductor

· Bi4 Br12

Bi₄Br₁₂ is a bismuth halide semiconductor compound belonging to the family of layered perovskite-related materials. This is primarily a research-phase material being investigated for optoelectronic and photovoltaic applications due to its semiconducting properties and potential for tunable bandgap engineering. While not yet commercialized at scale, bismuth halides are of significant interest as lead-free alternatives in next-generation solar cells and light-emitting devices, offering improved stability and reduced toxicity compared to conventional halide perovskites.

perovskite solar cellslead-free optoelectronicsphotovoltaic researchlight-emitting deviceshalide semiconductor researchradiation detection materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	12.28	GPa	—
Shear Modulus(G)	6.027	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.690	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.7480	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.

Bi4 Br12

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control