GeAs3
ceramic· GeAs3
GeAs3 is a chalcogenide ceramic compound composed of germanium and arsenic, belonging to the family of glass-forming materials used primarily in infrared optical applications. This material is notable for its transparency in the mid- to far-infrared spectrum, making it valuable for thermal imaging systems, infrared optics, and specialized lens applications where conventional optical glasses fail. GeAs3 and related chalcogenide ceramics are engineered for their unique optical properties rather than mechanical strength, offering engineers an alternative to crystalline infrared materials when refractive index, transmission bandwidth, and processability into complex shapes are critical.
infrared optics and lensesthermal imaging windowsspectroscopy and sensingfiber optics (chalcogenide fibers)aerospace infrared systemsresearch and development
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2178 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.000 | eV | — | ||
| ↳ | 0.000 | eV | — | ||
Seebeck Coefficient(S) | 3.240 | µV/K | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.4540 | eV/atom | — | ||
Formation Energy(ΔHf) | 0.4289 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
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.