Trimethylgallium, (Trimethylgallium), or (TMG), Ga (CH3) 3, (CAS number: 1445-79-0) is the preferred metallo-organic source of gallium used in the vapor phase organometallic epitaxy (MOVPE) , the manufacturing process of semiconductor compounds containing gallium in various forms such as, for example, gallium arsenide GaAs, GaN, GaP, gallium antimonide GaSb, GaInAs, InGaN, AlInGaP, GaInP or AlInGaNP.
The TMG is a light colored liquid, boiling at 55.7 ° C and melting point (or freezing point) at -15 ° C. The TMG is known to be pyrophoric, that is, it ignites spontaneously on contact with air. Even TMG solutions in hydrocarbons, when sufficiently saturated, are known to ignite spontaneously on contact with air.
It is known that TMG reacts violently with water and other compounds capable of providing a free active hydrogen ion (ie a proton). Therefore, the manipulation of TMG must be done with great care and caution. For example, it should be stored in a cool and dry place between 0 and 25 ° C, in an inert atmosphere. representation of the TMG in 2 dimensions. representation of the TMG in 3 dimensions. Related materials
wiki
