Bi4 I4

semiconductor
· Bi4 I4

Bi₄I₄ is a bismuth iodide compound belonging to the halide perovskite family of semiconductors, characterized by a layered crystal structure that emerged from research into lead-free alternatives for optoelectronic applications. This material is primarily investigated in research settings for photovoltaic devices, photodetectors, and light-emitting applications, where its reduced toxicity compared to lead halide perovskites and tunable band gap make it a candidate for next-generation solar cells and imaging sensors. Its layered structure offers potential advantages in stability and ion migration suppression, though it remains largely in the development phase rather than established in high-volume commercial production.

perovskite solar cellsphotodetectorslight-emitting deviceshalide semiconductor researchlead-free optoelectronicsthin-film photovoltaics

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
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
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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.