P2Se5 — Properties & Data | MatWorld

P2Se5

Name: P2Se5
Brand: MatWorld

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	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	4.030	kg/m³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	2.200	eV	Measured
↳	1.049	eV	DFT · OptB88vdW
↳	1.719	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	13.24	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	9.966	-	DFT · OptB88vdW
↳	7.638	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000608	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000637	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-323.7	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	312.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	28.90	%	DFT · TBmBJ

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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.03690	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.01123	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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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

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