AsSI

semiconductor

· AsSI

AsSi is a binary compound semiconductor composed of arsenic and silicon, belonging to the III-V semiconductor family. It is primarily of research and development interest for optoelectronic and high-speed electronic applications where direct bandgap or modified electronic properties are desired compared to pure silicon. The material remains largely experimental, with potential applications in infrared detectors, heterojunction devices, and integrated photonic systems where the unique band structure of arsenic-silicon combinations could offer advantages over conventional Si or GaAs technologies.

infrared optoelectronics (research)high-speed transistors (experimental)heterojunction solar cellsintegrated photonics (developmental)semiconductor quantum structuresband-engineered devices

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	2,755.7	ksi	—
Shear Modulus(G)	-777.4	ksi	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1626 range 0.1525–0.1726median of 2 measurements	lb/in³	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.050	eV	—
↳	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—

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, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.7477 range 0.4799–1.015median of 2 measurements	eV/atom	—
Formation Energy(ΔHf)	0.5813 range 0.3136–0.8491median of 2 measurements	eV/atom	—

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.

AsSI

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control