CsSb

semiconductor

· CsSb

CsSb is a binary intermetallic compound composed of cesium and antimony, belonging to the class of narrow-bandgap semiconductors used primarily in photoemissive and optoelectronic applications. It is notably used as a photocathode material in image intensifier tubes, infrared detectors, and vacuum photodiodes, where its high quantum efficiency in the visible-to-near-infrared range makes it valuable for low-light imaging systems. CsSb is favored in military, medical, and scientific instrumentation where sensitivity and spectral response are critical, though its hygroscopic nature and vacuum-dependent operation require careful integration and specialized handling compared to solid-state alternatives.

photocathode coatingsimage intensifier tubesinfrared photodetectorsnight-vision systemsvacuum photodiodesscientific imaging sensors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.8000	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.

CsSb

Electrical Properties

Regulatory Screening

Environmental

Export Control