K2MnSnSe4

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)	0.1458	lb/in³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)2 entries	1.700	eV	—
↳	0.04200	eV	—

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	—
Formation Energy(ΔHf)	-0.8275	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.

K2MnSnSe4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control