Significantly enhanced thermal conductivity of indium arsenide nanowires via sulfur passivation.

Author(s) Xiong, Y.; Tang, H.; Wang, X.; Zhao, Y.; Fu, Q.; Yang, J.; Xu, D.
Journal Sci Rep
Date Published 2017 Oct 16

ABSTARCT: In this work, we experimentally investigated the effect of sulfur passivation on thermal transport in indium arsenide (InAs) nanowires. Our measurement results show that thermal conductivity can be enhanced by a ratio up to 159% by sulfur passivation. Current-voltage (I-V) measurements were performed on both unpassivated and S-passivated InAs nanowires to understand the mechanism of thermal conductivity enhancement. We observed a remarkable improvement in electrical conductivity upon sulfur passivation and a significant contribution of electrons to thermal conductivity, which account for the enhanced thermal conductivity of the S-passivated InAs nanowires.

DOI 10.1038/s41598-017-13792-4
ISSN 2045-2322
Citation Sci Rep. 2017;7(1):13252.

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