Cu2 S1
semiconductor· Cu2 S1
Cu2S (copper(I) sulfide) is an inorganic semiconductor compound belonging to the chalcogenide family, characterized by copper and sulfur bonding in a 2:1 stoichiometric ratio. Historically used in photovoltaic devices and photodetectors, Cu2S is primarily of interest in research contexts for thin-film solar cells and optoelectronic applications due to its narrow bandgap and tunable electrical properties. While largely superseded by more stable alternatives in commercial applications, Cu2S remains relevant in emerging photovoltaic research and as a model system for understanding phase stability and semiconductor interfaces in copper-based systems.
thin-film photovoltaicsphotodetectorsoptoelectronic researchsemiconductor device researchsolar cell developmentchalcogenide compound research
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | — | ksi | — | — | |
Shear Modulus(G) | — | ksi | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Formation Energy(ΔHf) | — | 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.