Cs3Bi2I9 — Properties & Data | MatWorld

Cs3Bi2I9

Name: Cs3Bi2I9
Brand: MatWorld

semiconductor

· Cs3Bi2I9

Cs₃Bi₂I₉ is a lead-free halide perovskite semiconductor composed of cesium, bismuth, and iodine. This is an experimental research material still in development stages, investigated primarily as a safer alternative to lead-based perovskites for next-generation optoelectronic devices. It offers potential advantages in stability and reduced toxicity compared to conventional lead halide perovskites, though it remains primarily confined to laboratory research rather than commercial production.

solar cells (perovskite photovoltaics)radiation detectionlight-emitting devicesX-ray imaging sensorsoptoelectronic researchtoxic-free semiconductor development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)2 entries	1.800	eV	Measured
↳	1.900	eV	Measured

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

Cs3Bi2I9

Electrical Properties

Regulatory Screening

Environmental

Export Control