K4 Sn2 Au4 S8

semiconductor

· K4 Sn2 Au4 S8

K4Sn2Au4S8 is a mixed-metal sulfide semiconductor compound containing potassium, tin, gold, and sulfur in a fixed stoichiometric ratio. This is a research-stage material in the family of multimetallic chalcogenides, where the presence of noble metal (Au) and semi-metal (Sn) components suggests potential for tuned electronic or optoelectronic behavior. While not yet established in mainstream industrial production, materials of this class are explored for applications requiring precise band-gap engineering, photovoltaic response, or catalytic activity—particularly in advanced semiconductor research and materials discovery programs.

research semiconductorsphotovoltaic absorber layerscatalytic materials developmentoptoelectronic devicesmaterials discovery and screening

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.502	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.7510	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 Sn2 Au4 S8

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control