POsSe

Name: POsSe
Brand: MatWorld

semiconductor

· POsSe

POsSe is an experimental binary semiconductor compound composed of polonium and selenium, belonging to the chalcogenide semiconductor family. While not commercially established, this material is primarily of research interest in solid-state physics and materials science, as compounds in this family are investigated for potential applications in thermoelectric devices, radiation detection, and specialized optoelectronic systems. Engineers would consider POsSe primarily in exploratory contexts where the unique electronic properties of heavy-element chalcogenides may offer advantages in extreme environments or where conventional semiconductors are limited.

Experimental semiconductor researchThermoelectric device developmentRadiation detection systemsHigh-density semiconductor applicationsMaterials discovery and characterization

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	23,806.5	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	16,634.4	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3513	lb/in³	DFT · OptB88vdW

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

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Method

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	1.400	eV	Measured
↳	0.6240	eV	DFT · OptB88vdW
↳	0.7130	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	16.83	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	24.54	%	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.02690	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.3303	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

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.

POsSe — Properties & Data | MatWorld

POsSe

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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