K4 Na4 Se4

semiconductor

· K4 Na4 Se4

K4Na4Se4 is an alkali metal selenide compound classified as a semiconductor, consisting of potassium, sodium, and selenium in a mixed-cation framework structure. This is a research-phase material rather than an established commercial compound; it belongs to the family of mixed-alkali chalcogenides being investigated for solid-state ionics, thermal management, and optoelectronic applications where tunable bandgap and ionic conductivity are advantageous. Engineers considering this material should recognize it as an experimental candidate for next-generation solid electrolytes and photonic devices rather than a production-ready alternative to conventional semiconductors.

solid-state electrolytes (research)thermal interface materials (experimental)optoelectronic devices (developmental)all-solid-state batteries (emerging)phononic/photonic metamaterials (exploratory)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	24.26	GPa	—
Shear Modulus(G)	14.91	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.292	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.223	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 Na4 Se4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control