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

Units:

si imperial

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)	4.030	kg/m³	—

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Property	Value	Unit	Conditions
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, or test environment.

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.

P2Se5

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control