In3Bi7(Pb2S9)2

ceramic

· In3Bi7(Pb2S9)2

In₃Bi₇(Pb₂S₉)₂ is a complex quaternary sulfide ceramic compound combining indium, bismuth, and lead sulfide phases. This is a research-stage material that belongs to the family of mixed-metal sulfide ceramics, which are of interest for thermoelectric applications and solid-state electronics due to their layered crystal structures and potential for phonon scattering. While not yet commercialized in mainstream engineering, materials in this compositional space are investigated for their ability to decouple electrical and thermal transport properties, making them candidates for waste-heat recovery and specialized semiconductor applications where conventional materials fall short.

thermoelectric deviceswaste heat recoverysolid-state electronics researchlow-dimensional semiconductorsadvanced ceramics developmentphonon engineering

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—

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

Regulatory Screening

Environmental

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.

In3Bi7(Pb2S9)2

Electrical Properties

Regulatory Screening

Environmental