Directionally Integrated VLS Nanowire Growth in a Local Temperature Gradient

Going straight: A simple and robust mechanism coherently directs nanowire growth directions by introducing a local temperature gradient as the local kinetic variable during the conventional vapor–liquid–solid (VLS) growth (see picture, scale bar=200 μm). The nanowires grow straight in the vertical d...

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Published inAngewandte Chemie (International ed.) Vol. 48; no. 40; pp. 7366 - 7370
Main Authors Lee, Geunhee, Woo, Yun Sung, Yang, Jee-Eun, Lee, Donghun, Kim, Cheol-Joo, Jo, Moon-Ho
Format Journal Article
LanguageEnglish
Published Weinheim Wiley-VCH Verlag 01.01.2009
WILEY‐VCH Verlag
Subjects
interfaces
kinetic control
Kinetics
nanostructures
Nanowires - chemistry
self‐assembly
Silicon Dioxide - chemistry
Temperature
vapor–liquid–solid growth
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Summary:Going straight: A simple and robust mechanism coherently directs nanowire growth directions by introducing a local temperature gradient as the local kinetic variable during the conventional vapor–liquid–solid (VLS) growth (see picture, scale bar=200 μm). The nanowires grow straight in the vertical direction, but possess kinks near the catalytic tips.
Bibliography:http://dx.doi.org/10.1002/anie.200902451
We thank Prof. Byeong‐Joo Lee for helpful discussions on the thermodynamics of nanowire growth. This work was supported by the Nano R&D program through the NRF (2007‐02864), “System IC 2010” of the MEST, the MEST‐AFOSR NBIT, the KRF Grant MOEHRD (KRF‐2005‐005J13103), and the WCU program through by MEST (R31‐2008‐000‐10059‐0). VLS=vapor–liquid–solid.
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ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200902451