期刊
APPLIED PHYSICS LETTERS
卷 103, 期 19, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4829357
关键词
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资金
- MOST [2012CB932702, 2010CB934203]
- FANEDD [201241]
- NSF of China [60925003, 61371001, 11304003]
Managing heat transport at nanoscale is an important and challenging task for nanodevice applications and nanostructure engineering. Herein, through in-situ engineering nanowire (NW)-electrode contacts with electron beam induced carbon deposition in a transmission electron microscope, Joule heat dissipation along individual suspended Indium Arsenide NWs is well managed to obtain pre-designed temperature profiles along NWs. The temperature profiles are experimentally determined by the breakdown site of NWs under Joule heating and breakdown temperature measurement. A model with NW-electrode contacts being well considered is proposed to describe heat transport along a NW. By fitting temperature profiles with the model, thermal conductance at NW-electrode contacts is obtained. It is found that, the temperature profile along a specific NW is mainly governed by the relative thermal conductance at the two NW-electrode contacts, which is engineered in experiments. (C) 2013 AIP Publishing LLC.
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