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triethylgallium

n. (context organic compound English) The organometallic compound, (CH3CH2)3Ga, used in vapour-phase epitaxy for the manufacture of semiconductors

Wikipedia
Triethylgallium

Triethylgallium, Ga(CH), or TEGa, is a metalorganic source of gallium for metalorganic vapour phase epitaxy (MOVPE) of compound semiconductors.