作者: Yong Kim , Hannah J. Joyce , Qiang Gao , H. Hoe Tan , Chennupati Jagadish
DOI: 10.1021/NL052189O
关键词: Photoluminescence 、 Nanowire 、 Metalorganic vapour phase epitaxy 、 Nanotechnology 、 Chemical vapor deposition 、 Materials science 、 Epitaxy 、 Nanoparticle 、 Silicon 、 Optoelectronics 、 Ternary operation
摘要: We have synthesized ternary InGaAs nanowires on (111)B GaAs surfaces by metal-organic chemical vapor deposition. Au colloidal nanoparticles were employed to catalyze nanowire growth. observed the strong influence of density height, tapering, and base shape specific with high In composition. This dependency was attributed large difference diffusion length between Ga reaction species, being more mobile species. Energy dispersive X-ray spectroscopy analysis together high-resolution electron microscopy study individual shows In/Ga compositional variation along supporting present model. Photoluminescence spectra exhibit a red shift decreasing due higher degree incorporation in sparsely distributed nanowires.