Thermal conductivity in individual single-crystalline PbTe nanowires

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

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We investigated the thermal conductivity of individual single-crystalline PbTe nanowires grown by chemical vapor transport method. Suspended MEMS was utilized to precisely measure the thermal conductivity of an individual nanowire. The thermal conductivity of a PbTe nanowire with diameter of 292 nm was measured to be 1.8 W/m·K at 300 K, which is about two thirds of that of bulk PbTe. This result indicates that the thermal conduction through a PbTe nanowire is effectively suppressed by the enhanced phonon boundary scattering. As the diameter of a PbTe nanowire decreases, the corresponding thermal conductivity linearly decreases.

Original languageEnglish
Pages (from-to)175-179
Number of pages5
JournalJournal of Korean Institute of Metals and Materials
Volume48
Issue number2
DOIs
Publication statusPublished - 2010 Feb 1

Fingerprint

Nanowires
Thermal Conductivity
Thermal conductivity
Crystalline materials
Decrease
Phonon
Micro-electro-mechanical Systems
Conduction
MEMS
Linearly
Vapors
Scattering

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Modelling and Simulation
  • Surfaces, Coatings and Films
  • Metals and Alloys

Cite this

Roh, Jong Wook ; Jang, So Young ; Kang, Joohoon ; Lee, Seunghyun ; Noh, Jin Seo ; Park, Jeunghee ; Lee, Wooyoung. / Thermal conductivity in individual single-crystalline PbTe nanowires. In: Journal of Korean Institute of Metals and Materials. 2010 ; Vol. 48, No. 2. pp. 175-179.
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Thermal conductivity in individual single-crystalline PbTe nanowires. / Roh, Jong Wook; Jang, So Young; Kang, Joohoon; Lee, Seunghyun; Noh, Jin Seo; Park, Jeunghee; Lee, Wooyoung.

In: Journal of Korean Institute of Metals and Materials, Vol. 48, No. 2, 01.02.2010, p. 175-179.

Research output: Contribution to journalArticle

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AU - Lee, Wooyoung

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