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

All Science Journal Classification (ASJC) codes

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

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