S6 Cu4 Sn2

semiconductor

· S6 Cu4 Sn2

S6 Cu4 Sn2 is a copper-tin intermetallic compound belonging to the sulfide-based semiconductor family, combining copper, tin, and sulfur in a defined stoichiometric ratio. This material is of research interest in thin-film electronics and photovoltaic applications, where copper-tin sulfides show potential as earth-abundant alternatives to conventional semiconductors like CdTe or CIGS for solar cells and optoelectronic devices. The specific S6 Cu4 Sn2 phase offers tunable band gap properties and lower toxicity compared to cadmium-based alternatives, making it notable for cost-effective and environmentally sustainable device fabrication, though it remains primarily in developmental stages rather than widespread industrial production.

thin-film photovoltaicssolar cells (research phase)optoelectronic devicesearth-abundant semiconductorslow-toxicity electronicsmaterials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.01610	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3900	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.

S6 Cu4 Sn2

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control