Tensile-strain-dependent thermal conductivity study of a single-crystal thin film in the vacuum environment

POSTER

Abstract

Stretchable electronics have recently received increased attention for their wide applications for tactile sensor for artificial skin electronics, wearable devices, and stretchable displays. Along this line, the strain-dependent thermal conductivity of stretched material can be of significance to many energy-related applications. In the literature, the very few thermal measurements for films under uniaxial tensile strains have all been conducted in ambient condition and the accuracy of measurements is affected by convection.[1-2] In this work, a single-crystal thin film has been measured for its tensile-strain-dependent thermal conductivity along both the in-plain and cross-plain directions. The state-of-the art pump-probe technic is used for high-vacuum and temperature-dependent measurements. The results presented here can be important to many strain-engineering applications.
1. Alam et al., Journal of Micromechanics and Microengineering 22,045001 (2012)
2. Kathryn Fay Murphy, University of Pennsylvania, PhD Dissertation (2014)

Presenters

  • Qing Hao

    Univ of Arizona, Aerospace and mechanical engineering, University of Arizona

Authors

  • Mingi Kang

    Aerospace and mechanical engineering, University of Arizona

  • Qing Hao

    Univ of Arizona, Aerospace and mechanical engineering, University of Arizona

  • Dongchao Xu

    Univ of Arizona, Aerospace and mechanical engineering, University of Arizona

  • Fabian Medina

    Aerospace and mechanical engineering, University of Arizona

  • Xuewang Wu

    Department of Mechanical Engineering, University of Minnesota

  • Jie Zhu

    Mechanical Engineering, University of Minnesota Twin Cities, University of Minnesota, Twin Cities, Department of Mechanical Engineering, University of Minnesota

  • Xiaojia Wang

    Mechanical Engineering, University of Minnesota Twin Cities, University of Minnesota, Twin Cities, Department of Mechanical Engineering, University of Minnesota