CsK(PSe4)2

semiconductor

· CsK(PSe4)2

CsK(PSe₄)₂ is a mixed-cation chalcophosphate semiconductor compound combining cesium, potassium, phosphorus, and selenium. This material belongs to an emerging class of multi-element semiconductors being explored in research settings for nonlinear optical and photonic applications, where its layered anionic structure and wide bandgap make it relevant to the infrared and mid-infrared spectral regions—offering potential advantages over conventional oxide-based alternatives in specialized optical systems.

nonlinear optical crystalsinfrared photonicsfrequency conversion devicesresearch semiconductorssolid-state laser systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.360	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.

CsK(PSe4)2

Electrical Properties

Regulatory Screening

Environmental

Export Control