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Gallium antimonide (GaSb) is a semiconducting compound of gallium and antimony of the III-V family. It has a lattice constant of about 0.61 nm.
G 1600 (OTTO) Gallium antimonide, 99.99% Cas 12064-03-8 - used for Infrared detectors, infrared LEDs and lasers and transistors, and thermophotovoltaic systems.