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

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number485707
JournalNanotechnology
Volume22
Issue number48
DOIs
Publication statusPublished - 2011 Dec 2

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Local temperature measurements on nanoscale materials using a movable nanothermocouple assembled in a transmission electron microscope'. Together they form a unique fingerprint.

Cite this