TiSe2
semiconductor· TiSe2
TiSe₂ is a layered transition metal dichalcogenide semiconductor composed of titanium and selenium atoms arranged in a two-dimensional crystal structure. This material is primarily investigated in research and emerging technology contexts rather than high-volume industrial production, with potential applications in optoelectronics, energy storage, and thermoelectric devices that exploit its layered geometry and electronic properties.
2D semiconductor devicesLayered optoelectronicsBattery and supercapacitor electrodesThermoelectric applicationsPhotovoltaic researchVan der Waals heterostructures
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 2,338.7 | ksi | — | ||
| ↳ | 6,004.6 | ksi | — | ||
Exfoliation Energy(Eexf) | 94.48 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.2300 | - | — | ||
Shear Modulus(G)2 entries | 1,717.4 | ksi | — | ||
| ↳ | 3,997.2 | ksi | — |
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 | |
|---|---|---|---|---|---|
Density(ρ) | 0.1866 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 1.550 | eV | — | ||
| ↳ | 0.000 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 414.9 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | 0.5500 | 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) | 0.01220 | eV/atom | — | ||
Formation Energy(ΔHf) | -1.163 | 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.