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 journalArticle

1 Citation (Scopus)

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
Publication statusPublished - 2020 Jan

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

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