Cs4Ge5(PbS4)4

semiconductor

· Cs4Ge5(PbS4)4

Cs4Ge5(PbS4)4 is a quaternary semiconductor compound combining cesium, germanium, lead, and sulfur in a complex crystal structure. This material belongs to the family of halide perovskites and chalcogenide semiconductors, representing an emerging class of compounds under active research for optoelectronic and photovoltaic applications. While not yet commercialized at scale, this composition is investigated for its potential to combine the stability and tunability of lead-chalcogenide semiconductors with the structural advantages of perovskite-like frameworks, offering a research pathway toward next-generation light-absorbing or light-emitting devices.

Next-generation photovoltaics (research)Infrared optoelectronics (exploratory)Thin-film semiconductors (developmental)Lead-based semiconductor alternatives (research)Quantum dot precursors (experimental)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.950	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.

Cs4Ge5(PbS4)4

Electrical Properties

Regulatory Screening

Environmental

Export Control