| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Growth of Self-Catalyzed InP Nanowires by Metalorganic Chemical Vapour Deposition |
| LV Xiao-Long, ZHANG Xia**, YAN Xin, LIU Xiao-Long, CUI Jian-Gong, LI Jun-Shuai, HUANG Yong-Qing, REN Xiao-Min |
State Key Laboratory of Information Photonics & Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876
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| Cite this article: |
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LV Xiao-Long, ZHANG Xia, YAN Xin et al 2012 Chin. Phys. Lett. 29 126102 |
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Abstract The fabrication of self-catalyzed InP nanowires (NWs) is investigated under different growth conditions. Indium droplets induced by surface reconstruction act as nucleation sites for NW growth. Vertical standing NWs with uniform cross sections are obtained under optimized conditions. It is confirmed that the growth rate of NWs is strongly affected by the surface diffusion adatoms while contributions from the direct impingement of vapor species onto the In droplets can be negligible. The results indicate that the droplet acts as an adatom collector rather than a catalyst. Moreover, the diffusion flow rate of adatoms increases with time at the beginning of growth and stabilizes as the growth proceeds.
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Received: 23 August 2012
Published: 04 March 2013
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| PACS: |
61.46.Hk
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(Nanocrystals)
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68.37.Lp
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(Transmission electron microscopy (TEM))
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61.46.Km
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(Structure of nanowires and nanorods (long, free or loosely attached, quantum wires and quantum rods, but not gate-isolated embedded quantum wires))
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