K2MnSnSe4 — Properties & Data | MatWorld

K2MnSnSe4

Name: K2MnSnSe4
Brand: MatWorld

semiconductor

· K2MnSnSe4

K2MnSnSe4 is a quaternary chalcogenide semiconductor compound composed of potassium, manganese, tin, and selenium. This is a research-phase material under investigation for its potential optoelectronic and thermoelectric properties, belonging to the broader family of multinary semiconductors that exhibit tunable bandgaps and mixed-valence capabilities. The manganese and tin cations combined with selenide provide opportunities for applications requiring non-toxic alternatives to heavy-metal-based semiconductors, though practical industrial deployment remains exploratory.

photovoltaic researchthermoelectric devicesoptoelectronic componentsnon-toxic semiconductor developmentsolid-state energy conversion

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	4.037	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	1.700	eV	Measured
↳	0.04200	eV	DFT · OptB88vdW
↳	0.7430	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	5.524	-	DFT · TBmBJ
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	25.25	%	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.8275	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.

K2MnSnSe4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control