Cu4 Ge2 Se8 Sr2

semiconductor

· Cu4 Ge2 Se8 Sr2

Cu₄Ge₂Se₈Sr₂ is a quaternary semiconductor compound combining copper, germanium, selenium, and strontium elements. This is a research-stage material studied for potential applications in thermoelectric conversion and solid-state electronics, where the mixed-metal composition offers opportunities to engineer band gaps and thermal transport properties beyond what binary or ternary semiconductors provide. The material belongs to the family of complex chalcogenide semiconductors, which are of interest for energy harvesting and photovoltaic applications where tunable electronic and thermal properties are advantageous.

Thermoelectric energy conversionPhotovoltaic researchSolid-state electronicsThermal management devicesExperimental semiconductor devices

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.05720	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.7150	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.

Cu4 Ge2 Se8 Sr2

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control