CsBi3Se5

semiconductor

· CsBi3Se5

CsBi3Se5 is a ternary halide-free semiconductor compound composed of cesium, bismuth, and selenium, belonging to the class of lead-free perovskite and bismuth-based semiconductors under active research. This material is investigated primarily for optoelectronic applications where toxicity concerns and stability improvements over lead-containing alternatives are critical; it remains largely in the research and development phase rather than established industrial production. The compound's appeal lies in its potential for photovoltaic cells, X-ray/gamma-ray detection, and infrared sensing, where bismuth-based semiconductors offer reduced environmental impact and tunable band-gap properties compared to conventional lead or cadmium-based systems.

photovoltaic cells (research)X-ray detectiongamma-ray detectioninfrared sensinglead-free semiconductor alternativesoptoelectronic devices (development stage)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.4300	eV	—

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.

CsBi3Se5

Electrical Properties

Regulatory Screening

Environmental

Export Control