Ho4 Cu4 S8
semiconductor· Ho4 Cu4 S8
Ho₄Cu₄S₈ is a quaternary semiconductor compound combining rare-earth (holmium), transition metal (copper), and chalcogen (sulfur) elements. This is a research-phase material primarily studied for potential thermoelectric and optoelectronic applications, where the combination of rare-earth and copper sulfide chemistry offers possibilities for tuning electronic and thermal transport properties that differ from conventional binary or ternary semiconductors.
thermoelectric devicesoptoelectronic researchrare-earth semiconductor compoundssolid-state physics studiesadvanced materials development
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.