Size-dependent thermal conductivity of individual single-crystalline PbTe nanowires

Jong Wook Roh, So Young Jang, Joohoon Kang, Seunghyun Lee, Jin Seo Noh, Woochul Kim, Jeunghee Park, Wooyoung Lee

Research output: Contribution to journalArticle

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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 languageEnglish
Article number103101
JournalApplied Physics Letters
Volume96
Issue number10
DOIs
Publication statusPublished - 2010 Mar 26

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nanowires
thermal conductivity
vapors
scattering

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Roh, Jong Wook ; Jang, So Young ; Kang, Joohoon ; Lee, Seunghyun ; Noh, Jin Seo ; Kim, Woochul ; Park, Jeunghee ; Lee, Wooyoung. / Size-dependent thermal conductivity of individual single-crystalline PbTe nanowires. In: Applied Physics Letters. 2010 ; Vol. 96, No. 10.
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Size-dependent thermal conductivity of individual single-crystalline PbTe nanowires. / Roh, Jong Wook; Jang, So Young; Kang, Joohoon; Lee, Seunghyun; Noh, Jin Seo; Kim, Woochul; Park, Jeunghee; Lee, Wooyoung.

In: Applied Physics Letters, Vol. 96, No. 10, 103101, 26.03.2010.

Research output: Contribution to journalArticle

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AU - Roh, Jong Wook

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AU - Kim, Woochul

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