期刊
APPLIED PHYSICS LETTERS
卷 96, 期 10, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3352049
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资金
- Priority Research Centers Program [2009-0093823]
- Basic Science Research Program through the National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology
- Seoul RBD Program [10816]
- WCU (World Class University) [R31-10035]
- Seoul Science Fellowship
- Ministry of Education, Science & Technology (MoST), Republic of Korea [R31-2008-000-10035-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [15-2008-05-002-00, 과06B1510, 2009-0093823] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We investigated the thermal conductivity of individual single-crystalline PbTe nanowires grown by a chemical vapor transport method. Thermal conductivities of PbTe nanowires 182-436 nm in diameter were measured using suspended microdevices. The thermal conductivity of a PbTe nanowire appeared to decrease with decreasing nanowire diameter and was measured to be 1.29 W/mK for a 182 nm nanowire at 300 K, which is about half of that of bulk PbTe. Our results indicate that phonon transport through a PbTe nanowire is effectively suppressed by the enhanced phonon boundary scattering due to size effects. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3352049]
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