Crystal Growth of InP on a Gd3Ga5O12 Substrate by Organometallic Chemical Vapor Deposition

Abstract
This paper reports the results of crystal growth of InP on a Gd3Ga5O12 (GGG) substrate. Effectiveness of the In-P/GaInAsP superlattice is shown. Substrate orientations of (100) and (111) are compared. By using the GGG(100) substrate and introducing the superlattice, the best result was obtained for growing an InP layer. From X-ray diffraction analysis, it was found that the grown InP layer was preferentially (111) oriented along the film normal. SEM and RHEED observation revealed that the grown layer was composed of polycrystalline grains with random orientation in the film plane.