P2Se5
semiconductor· P2Se5
P₂Se₅ is a binary phosphorus selenide semiconductor compound belonging to the phosphorus chalcogenide family, which exhibits layered crystal structures amenable to mechanical exfoliation. This material is primarily investigated in research contexts for optoelectronic and photonic applications, where its semiconducting bandgap and two-dimensional form-factor offer potential advantages in field-effect transistors, photodetectors, and integrated photonics compared to conventional silicon or III-V semiconductors. The layered nature and moderate exfoliation characteristics make it a candidate for van der Waals heterostructure engineering in emerging quantum and nanoscale device platforms.
2D semiconductor researchPhotodetectors and photonicsField-effect transistorsVan der Waals heterostructuresOptoelectronic devicesEmerging quantum devices
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Exfoliation Energy(Eexf) | 122.5 | meV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1456 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 2.200 | eV | — | ||
| ↳ | 1.049 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 13.24 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -323.8 | 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) | 0.03690 | eV/atom | — | ||
Formation Energy(ΔHf) | 0.01123 | 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.