K4 Cu2 Se8 Nb2

semiconductor

· K4 Cu2 Se8 Nb2

K4Cu2Se8Nb2 is a quaternary semiconductor compound combining potassium, copper, selenium, and niobium in a mixed-metal chalcogenide structure. This is a research-phase material explored primarily for its electronic and optical properties within the broader family of complex metal selenides; industrial applications remain limited or experimental at present. Engineers and materials researchers investigate such compounds for potential use in next-generation photovoltaics, thermoelectrics, or solid-state electronics where unconventional compositions might offer band gap engineering or novel charge transport behavior.

Experimental photovoltaicsThermoelectric materials researchSolid-state electronics developmentBand gap engineering studiesSemiconductor device prototypingChalcogenide compound research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.667	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.9790	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.

K4 Cu2 Se8 Nb2

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control