K2 Sm2 Ge2 Se8

semiconductor

· K2 Sm2 Ge2 Se8

K2Sm2Ge2Se8 is a mixed-metal chalcogenide semiconductor compound combining potassium, samarium, germanium, and selenium in a layered crystal structure. This is a research-phase material primarily investigated for its potential in infrared (IR) optics and nonlinear optical applications, where rare-earth incorporation (samarium) and germanium-selenium frameworks offer tunable bandgaps and transparency windows in mid-to-far IR regions. The material represents an emerging class of quaternary selenides that could serve specialized roles in thermal imaging, sensing, or quantum optics where conventional semiconductors are optically opaque.

infrared optics and lensesnonlinear optical devicesthermal sensing windowsresearch and spectroscopy instrumentationphotonic and quantum optics platforms

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.518	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.172	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 Sm2 Ge2 Se8

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control