Measurement of thermal conductivity of thin and thick films based on micropipette thermocouple

R. Shrestha, T. Y. Choi, C. S. Han, W. S. Chang, S. Y. Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper describes novel glass micropipette thermal sensor fabricated in a cost-effective manner and thermal conductivity measurement of carbon nanotubes (CNT) thin film using the developed sensor. Various micrometer-sized sensors, which range from 2 μm to 30 μm, were produced and tested. The capability of the sensor in measuring thermal fluctuation at micro level with an accuracy of ±0.01°C is demonstrated. The sensitivity of sensors was recorded from 3.34 to 8.86 μV/°C, which was independent of tip size and dependent on the coating of Nickel. The experimental approach that was used for thermal conductivity measurement of CNT film is relevant to steady-state temperature distribution along the radial direction of the CNT film subject to continuous wave laser irradiation. We have obtained reproducible thermal conductivity data using various micropipette temperature sensors. The average thermal conductivity of the CNT film at room temperature was determined at 73.4 W/m°C.

Original languageEnglish
Title of host publicationProceedings of the 13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012
Pages1052-1058
Number of pages7
DOIs
Publication statusPublished - 2012
Event13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012 - San Diego, CA, United States
Duration: 2012 May 302012 Jun 1

Publication series

NameInterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITHERM
ISSN (Print)1936-3958

Other

Other13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012
CountryUnited States
CitySan Diego, CA
Period12/5/3012/6/1

Keywords

  • CNT film
  • micropipette sensor
  • thermal conductivity

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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