K2 Sn2 S2 O8 F2

semiconductor

· K2 Sn2 S2 O8 F2

K2Sn2S2O8F2 is an oxysulfide fluoride semiconductor compound containing potassium, tin, sulfur, oxygen, and fluorine. This is a research-phase material representing an emerging class of mixed-anion semiconductors that combine oxides, sulfides, and fluorides to engineer band gaps and electronic properties beyond traditional single-anion compounds. While not yet established in mainstream commercial applications, materials in this family are being investigated for photovoltaic devices, photoelectrochemical systems, and other optoelectronic applications where the mixed-anion framework offers potential advantages in band alignment and charge carrier dynamics compared to conventional semiconductors.

photovoltaic researchphotoelectrochemical devicesoptoelectronic semiconductorsband gap engineeringexperimental thin filmssolid-state materials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	3,851.6	ksi	—
Shear Modulus(G)	2,313.8	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	3.897	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.886	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.

K2 Sn2 S2 O8 F2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control