Bi12GeO20

semiconductor

· Bi12GeO20

Bi₁₂GeO₂₀ is a bismuth germanate oxide ceramic belonging to the sillenite family of photorefractive materials. It is primarily used in electro-optic and photonic applications where light modulation, beam deflection, and image processing are required, particularly in scientific instrumentation and optical data processing systems. This material is valued for its strong photorefractive effect—the ability to generate refractive index changes under illumination—making it a choice alternative to traditional electro-optic crystals in niche applications where sensitivity to visible and near-infrared light is advantageous.

photorefractive optical devicesholographic recording and storagespatial light modulationoptical image processingreal-time holographylaser beam deflection and steering

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	3.250	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.

Bi12GeO20

Electrical Properties

Regulatory Screening

Environmental

Export Control