Proton irradiation effects on thermal transport in individual single-crystalline Bi nanowires

Jong Wook Roh, Dai Ho Ko, Joohoon Kang, Min Kyung Lee, Joo Hee Lee, Cheol Woo Lee, Kyu Hyoung Lee, Jin Seo Noh, Wooyoung Lee

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We investigated the proton irradiation effect of thermal conductivities for individual single-crystalline Bi nanowires grown by the on-film formation of nanowires (ON-OFF). The thermal conductivities of Bi nanowires with diameter of 154 and 112 nm were measured using suspended devices before and after proton irradiation, respectively. It was founded thermal conductivities of Bi nanowires appreciably decrease after proton irradiation, which was caused by the destruction of single-crystallinity due to the high-energy proton impingement. This result indicates the defects of Bi nanowires created by proton drastically limit the mean free paths of phonons, resulting in the change of thermal transport of Bi nanowires.

Original languageEnglish
Pages (from-to)1438-1441
Number of pages4
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume210
Issue number7
DOIs
Publication statusPublished - 2013 Jul 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

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