K2Au2SnS4

semiconductor

· K2Au2SnS4

K2Au2SnS4 is a quaternary semiconductor compound containing potassium, gold, tin, and sulfur, belonging to the family of mixed-metal chalcogenides. This is a research-phase material being investigated for potential optoelectronic and photovoltaic applications, where the combination of noble metal (Au) and tin with sulfur ligands offers tunable electronic properties. While not yet in mainstream industrial production, compounds in this chemical family are of interest as alternatives to more toxic or scarce semiconductor materials, particularly for thin-film solar cells, photodetectors, and light-emitting devices.

experimental photovoltaic absorbersphotodetector materialsthin-film electronicsoptoelectronic researchhalide-free semiconductor alternatives

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.750	eV	—

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.

K2Au2SnS4

Electrical Properties

Regulatory Screening

Environmental

Export Control