MOCVD OF GROUP-III CHALCOGENIDES

A review is presented of recent advances in the metal organic chemical vapour deposition (MOCVD) of thin films of group III chalcogenides, including their application for the passivation of GaAs surfaces. The majority of studies involve the deposition of thermodynamic phases of composition ME and M(2)E(3) (M=Ga, In; E=S, Se, Te), however, MOCVD allows for the growth of either high-pressure (tetragonal InS) or non-thermodynamic phases (metastable cubic phases of GaS and InSe). Based on the results to date, a series of goals for molecular control over the structure of deposited films is discussed.