S4 K2 Fe2

semiconductor

· S4 K2 Fe2

S4 K2 Fe2 is an iron-based semiconductor compound containing potassium and sulfur, representing an emerging class of materials in solid-state chemistry research. This material belongs to the family of chalcogenides and mixed-metal sulfides, which are under investigation for electronic and photonic applications where conventional semiconductors face limitations. The compound's potential lies in alternative band gap engineering, thermoelectric conversion, and photocatalytic processes—applications where layered or heterostructured sulfide systems offer distinct advantages over silicon or traditional III-V semiconductors.

photocatalytic materials (research)thermoelectric devices (experimental)thin-film electronics (emerging)energy conversion systemssolid-state chemistry research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	4,894.2	ksi	—
Shear Modulus(G)	2,806	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.04960	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.8790	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.

S4 K2 Fe2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control