Local temperature measurements on nanoscale materials using a movable nanothermocouple assembled in a transmission electron microscope

Naoyuki Kawamoto, Ming Sheng Wang, Xianlong Wei, Dai Ming Tang, Yasukazu Murakami, Daisuke Shindo, Masanori Mitome, Dmitri Golberg

研究成果: ジャーナルへの寄稿学術誌査読

14 被引用数 (Scopus)

抄録

A nanoscale thermocouple consisting of merged Cu and Cu-Ni tips is developed for local temperature measurements on advanced nanomaterials by using a probing technique in a high-resolution transmission electron microscope (TEM) equipped with a double probe scanning tunneling microcopy (STM) unit. The fabricated nanothermocouple works as the so-called T-type thermocouple and displays a quick response and high spatial and thermal resolutions. A generated thermoelectromotive force which reflects rapid temperature changes controlled by electron beam intensity alternations on a metal nanoelectrode proves the technique's usefulness for high-precision local temperature measurements. The developed method demonstrates the effectiveness while also measuring temperature changes in Joule heated multi-walled carbon nanotubes (CNTs) and in a modeled electrical conductive composite nanosystem.

本文言語英語
論文番号485707
ジャーナルNanotechnology
22
48
DOI
出版ステータス出版済み - 12月 2 2011
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • バイオエンジニアリング
  • 化学一般
  • 材料科学一般
  • 材料力学
  • 機械工学
  • 電子工学および電気工学

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