SnSe
semiconductor· SnSe
Tin selenide (SnSe) is a layered IV-VI semiconductor compound with a two-dimensional crystal structure that can be mechanically exfoliated into thin films. While primarily in the research and development phase, SnSe shows promise in thermoelectric energy conversion and optoelectronic devices due to its narrow bandgap and strong anisotropic transport properties, positioning it as a candidate material for next-generation thermal-to-electric power generation and infrared sensing applications where conventional semiconductors have limitations.
thermoelectric generatorsinfrared detectors and sensorstwo-dimensional electronicsphotovoltaic researchthermal energy harvestingoptoelectronic devices
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 50.50 | GPa | — | ||
Exfoliation Energy(Eexf) | 143.6 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.2600 | - | — | ||
Shear Modulus(G) | 34.08 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 5.897 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 1.200 | eV | — | ||
| ↳ | 0.1990 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 45.70 | - | — | ||
| ↳ | 865.9 | - | — | ||
| ↳ | 239.4 range 73.46–405.4median of 2 measurements | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -162.6 | 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) | 0.01490 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.4876 | eV/atom | — | ||
| ↳ | -0.4806 | 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.