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High-Density, Defect-Free, and Taper-Restrained Epitaxial GaAs Nanowires Induced from Annealed Au Thin Films

Xu, Hongyi; Wang, Yong; Guo, YaNan; Liao, Zhi-Ming; Gao, Qiang; Jiang, Nian; Jagadish, Chennupati; Zou, Jin; Tan, Hark Hoe


In this study, we demonstrated that by using annealed Au thin films as catalysts, high-density, defect-free, and taper-restrained epitaxial GaAs nanowires were grown on GaAs (111)B substrates. The as-grown nanowires were compared with low-density Au colloidal nanoparticle catalyzed GaAs nanowires grown under identical conditions in the same metal-organic chemical vapor deposition reactor. Through detailed morphological and structural characterizations using advanced electron microscopy, we...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
Source: Crystal Growth & Design
DOI: 10.1021/cg201725g


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