Si0.458Ge0.542

semiconductor

· Si0.458Ge0.542

Si₀.₄₅₈Ge₀.₅₄₂ is a silicon-germanium (SiGe) alloy with nearly equal concentrations of silicon and germanium, belonging to the group IV semiconductor family. This composition sits near the midpoint of the SiGe system and is engineered for optoelectronic and high-frequency applications where tuned bandgap and lattice properties are critical. SiGe alloys are valued in industry for their compatibility with existing silicon processing infrastructure while offering superior carrier mobility and reduced bandgap compared to pure silicon, making them the material of choice for next-generation integrated circuits, heterojunction bipolar transistors, and infrared detectors.

heterojunction bipolar transistors (HBTs)high-frequency integrated circuitsinfrared photodetectorsfiber-optic receiversRF/microwave amplifiersspace and defense electronics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.240	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.

Si0.458Ge0.542

Electrical Properties

Regulatory Screening

Environmental

Export Control