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

doi:10.1016/j.cap.2019.10.007

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

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

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 language	English
Pages (from-to)	43-48
Number of pages	6
Journal	Current Applied Physics
Volume	20
Issue number	1
DOIs	https://doi.org/10.1016/j.cap.2019.10.007
Publication status	Published - 2020 Jan

All Science Journal Classification (ASJC) codes

Materials Science(all)
Physics and Astronomy(all)

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Moon, H., Kim, J., Chun, D. W., Hong, S., Yoon, Y. S., & Lee, W. (2020). Radial heterostructure and interface effects on thermoelectric transport properties of Bi/Sn and Bi/Sb core/shell nanowires. Current Applied Physics, 20(1), 43-48. https://doi.org/10.1016/j.cap.2019.10.007

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AU - Yoon, Young Soo

AU - Lee, Wooyoung

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