Y1 Cu2 S2 — Properties & Data | MatWorld

Y1 Cu2 S2

semiconductor

· Y1 Cu2 S2

Y1Cu2S2 is a ternary semiconductor compound combining yttrium, copper, and sulfur elements, belonging to the family of metal chalcogenides. This material is primarily of research interest rather than established industrial production, with potential applications in optoelectronic and thermoelectric devices where mixed-valence metal sulfides offer tunable electronic properties. The yttrium-copper-sulfide system is studied for photovoltaic absorbers, photodetectors, and solid-state energy conversion devices, positioning it as an emerging alternative to more conventional II-VI or I-III-VI2 semiconductors.

photovoltaic researchphotodetector devicesthermoelectric applicationsoptoelectronic materialsthin-film semiconductorsmaterials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00550	eV	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.8970	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

Y1 Cu2 S2

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control