Si0.226Ge0.774

semiconductor
· Si0.226Ge0.774

Si0.226Ge0.774 is a silicon-germanium (SiGe) alloy with a germanium-rich composition, belonging to the IV-IV semiconductor family used in high-performance optoelectronic and high-frequency electronic devices. This material is primarily employed in infrared detectors, heterojunction bipolar transistors (HBTs), and integrated photonics where its tuned bandgap and lattice properties enable superior performance over elemental Si or Ge alone. The high germanium content makes this alloy particularly notable for mid- to long-wavelength infrared sensing applications and for achieving enhanced carrier mobility in RF/mmWave integrated circuits, though careful thermal management is required due to lattice mismatch with standard Si substrates.

infrared detectorsheterojunction bipolar transistorshigh-frequency RF circuitsintegrated photonicsthermal imaging sensorsmillimeter-wave electronics

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Band Gap(Eg)
—
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.