K4 Si4 Bi4 S16

semiconductor

· K4 Si4 Bi4 S16

K₄Si₄Bi₄S₁₆ is a quaternary chalcogenide semiconductor compound combining potassium, silicon, bismuth, and sulfur elements. This material belongs to the family of complex sulfide semiconductors, which are primarily of research and developmental interest rather than established commercial use. Chalcogenide semiconductors containing bismuth are investigated for potential applications in thermoelectric devices, infrared optics, and advanced photovoltaic systems due to their tunable bandgaps and carrier properties, though K₄Si₄Bi₄S₁₆ specifically remains in the exploratory phase of materials characterization.

thermoelectric devicesinfrared opticsexperimental semiconductorsphotovoltaic researchmaterials characterizationsolid-state chemistry

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.985	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.8800	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 Si4 Bi4 S16

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control