Se1

semiconductor
· Se1

Selenium (Se) is an elemental semiconductor with photosensitive and photoconductive properties, commonly appearing as a thin-film material in electronic and optical devices. It is utilized in photodiodes, image sensors, xerography systems, and photovoltaic applications where its light-responsive behavior is critical; selenium is also valued in rectifier circuits and as a dopant in glass and ceramics for specialized optical transmission characteristics. Compared to silicon-based semiconductors, elemental selenium offers unique advantages in specific wavelength sensitivity and historical use in early xerographic and photographic technologies, though it has been partially displaced in modern applications by more stable compound semiconductors and silicon variants.

photodiodes and light sensorsxerography and imaging systemsphotovoltaic cellsrectifier circuitsoptical glass additiveshistorical photographic media

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
—
Pa——
Shear Modulus(G)
—
Pa——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
—
eV——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
—
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.