Thermal conductivity of silicon nanowires embedded on thermoelectric platforms

Jinyong Choi, Kyoungah Cho, Dae Sung Yoon, Sangsig Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this study, we propose a simple method for obtaining the thermal conductivity of silicon nanowires (SiNWs) embedded on a thermoelectric platform. The approximation of the heat flux in SiNWs with temperature differences enables the determination of thermal conductivity. Using this method, the thermal conductivities of our n- and p-type SiNWs are found to be 18.06 ± 0.12 and 20.29 ± 0.77 W m-1 • K-1, respectively. The atomic weight of arsenic ions in the n-type SiNWs is responsible for a lower thermal conductivity than that of boron ions in the p-type SiNWs. Our results demonstrate that this simple method is capable of measuring the thermal conductivity of thermoelectric nanomaterials embedded on thermoelectric devices.

Original languageEnglish
Article number105007
JournalMeasurement Science and Technology
Volume27
Issue number10
DOIs
Publication statusPublished - 2016 Sep 2

Keywords

  • heat transfer
  • plastic
  • Si nanowires
  • thermal conductivity
  • thermoelectric module

ASJC Scopus subject areas

  • Instrumentation
  • Applied Mathematics

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