Se0.2Te0.8

semiconductor

· Se0.2Te0.8

Se₀.₂Te₀.₈ is a tellurium-rich chalcogenide alloy semiconductor formed by alloying selenium and tellurium in a 20:80 composition ratio. This material belongs to the group VI elemental semiconductor family and is primarily investigated for infrared optics, thermal imaging, and photovoltaic applications where its narrow bandgap and high refractive index in the infrared spectrum are advantageous. The selenium-tellurium system is well-established in research contexts; this specific composition balances the wider bandgap of selenium with tellurium's superior infrared transmission, making it relevant for thermal detectors, infrared windows, and emerging thermoelectric device development.

infrared optics and lensesthermal imaging detectorsphotovoltaic/solar cellsthermoelectric devicesinfrared window materialsresearch/developmental semiconductors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.4000	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.

Se0.2Te0.8

Electrical Properties

Regulatory Screening

Environmental

Export Control