In1 Sb3

semiconductor

· In1 Sb3

In₁Sb₃ is a III-V semiconductor compound composed of indium and antimony, belonging to the narrow-bandgap material family used primarily in infrared and thermal imaging applications. This material is valued in defense, aerospace, and scientific instrumentation for its exceptional sensitivity to long-wavelength infrared radiation, enabling detection and imaging in the 3–5 μm and 8–12 μm atmospheric windows where it outperforms broader-bandgap alternatives. In₁Sb₃ is also investigated for thermoelectric energy conversion and cryogenic applications where its narrow bandgap and high carrier mobility provide advantages, though it remains less commercially mature than related compounds like InSb and InAs.

infrared detectors and focal plane arraysthermal imaging systemsmilitary surveillance and targetingscientific spectroscopy and remote sensingcryogenic photodetectorsthermoelectric materials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00555 range 0.00450–0.00660median of 2 measurements	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	0.1920 range 0.1900–0.1940median 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.

In1 Sb3

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control