As4
semiconductor· As4
As4 is a semiconductor compound in the arsenic family, likely referring to arsenic in a specific crystalline or alloy form used in electronic applications. This material is employed primarily in optoelectronic and high-frequency semiconductor devices where arsenic-based compounds offer superior electron mobility and direct bandgap properties compared to silicon. As4 is valued in niche applications requiring high-speed performance or specialized photonic functions, though it remains less common than GaAs or InAs compounds due to toxicity concerns and processing complexity.
optoelectronic deviceshigh-frequency integrated circuitsphotovoltaic cellsinfrared detectorsresearch semiconductors
Compliance & Regulations
?ITAR?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | — | Pa | — | — | |
Shear Modulus(G) | — | Pa | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Formation Energy(ΔHf) | — | eV/atom | — | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
Quality & Standards
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.