Abstract
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.
| Original language | English |
|---|---|
| Article number | 103101 |
| Journal | Applied Physics Letters |
| Volume | 96 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2010 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
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Roh, J. W., Jang, S. Y., Kang, J., Lee, S., Noh, J. S., Kim, W., Park, J., & Lee, W. (2010). Size-dependent thermal conductivity of individual single-crystalline PbTe nanowires. Applied Physics Letters, 96(10), [103101]. https://doi.org/10.1063/1.3352049