Ag2Se
metal· Ag2Se
Silver selenide (Ag₂Se) is a binary compound semiconductor belonging to the silver chalcogenide family, combining metallic silver with the semiconductor element selenium. This material is primarily investigated for thermoelectric applications and infrared optics, where its narrow bandgap and mixed ionic-electronic conduction properties enable energy conversion and thermal sensing. Ag₂Se is notable for phase-transition behavior at elevated temperatures and is considered a promising candidate in thermoelectric research for waste heat recovery systems, though it remains largely experimental compared to mature alternatives like bismuth telluride.
thermoelectric power generationinfrared detectors and sensorswaste heat recoverysolid-state cooling deviceshigh-temperature thermal applicationsmaterials research
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | — | Pa | — | — | |
Exfoliation Energy(Eexf) | — | meV/atom | — | — | |
Poisson's Ratio(ν) | — | - | — | — | |
Shear Modulus(G) | — | Pa | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | kg/m³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — | |
Dielectric Constant (Relative Permittivity)(εr)2 entries | — | - | — | — | |
| ↳ | — | - | — | — | |
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | — | |
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | — | |
Magnetic Moment(μB) | — | µB | — | — | |
Piezoelectric Modulus(eij)2 entries | — | C/m² | — | — | |
| ↳ | — | C/m² | — | — | |
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | — | |
Seebeck Coefficient(S) | — | µV/K | — | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | — | eV/atom | — | — | |
Formation Energy(ΔHf)2 entries | — | eV/atom | — | — | |
| ↳ | — | eV/atom | — | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
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.