Radial heterostructure and interface effects on thermoelectric transport properties of Bi/Sn and Bi/Sb core/shell nanowires

  • Hongjae Moon
  • , Jeongmin Kim
  • , Dong Won Chun
  • , Seokkyoon Hong
  • , Young Soo Yoon
  • , Wooyoung Lee

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The thermoelectric transport properties of Bi/Sn and Bi/Sb core/shell (C/S) nanowires grown by the method of on-film formation of nanowires were systematically investigated. The electrical conductivity and Seebeck coefficient of nanowires with different diameters were measured as a function of the temperature. The contribution of Sn and Sb shells to the total transport in the C/S nanowires was determined using analytical fitting based on the parallel combination of the conductive system model. The carrier-interface boundary scattering at the C/S interface was quantitatively evaluated as the sheet resistance. In addition, the effect of hole doping on the transport properties was also observed in the Bi/Sn C/S nanowires.

Original languageEnglish
Pages (from-to)43-48
Number of pages6
JournalCurrent Applied Physics
Volume20
Issue number1
DOIs
StatePublished - Jan 2020

Bibliographical note

Publisher Copyright:
© 2019

Keywords

  • Core/shell nanowires
  • Heterostructure
  • Interface
  • On-film formation of nanowires
  • Seebeck coefficient
  • Thermoelectric

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