Simultaneous Selective-Area and Vapor–Liquid–Solid Growth of InP Nanowire Arrays

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• 作者：Qian Gao ; Vladimir G. Dubrovskii ; Philippe Caroff ; Jennifer Wong-Leung ; Li Li ; Yanan Guo ; Lan Fu ; Hark Hoe Tan ; Chennupati Jagadish
• 刊名：Nano Letters
• 出版年：2016
• 出版时间：July 13, 2016
• 年：2016
• 卷：16
• 期：7
• 页码：4361-4367
• 全文大小：442K
• 年卷期：0
• ISSN：1530-6992

文摘

Selective-area epitaxy is highly successful in producing application-ready size-homogeneous arrays of III–V nanowires without the need to use metal catalysts. Previous works have demonstrated excellent control of nanowire properties but the growth mechanisms remain rather unclear. Herein, we report a detailed growth study revealing that fundamental growth mechanisms of pure wurtzite InP ⟨111⟩A nanowires can indeed differ significantly from the simple picture of a facet-limited selective-area growth process. A dual growth regime with and without metallic droplet is found to coexist under the same growth conditions for different diameter nanowires. Incubation times and highly nonmonotonous growth rate behaviors are revealed and explained within a dedicated kinetic model.