Bi-Te Core/Shell nanowires synthesis based on On-fiim formation of nanowires method for thermoelectric applications

Joohoon Kang; Jinhee Ham; Jong Wook Roh; Jin Seo Noh; Wooyoung Lee

doi:10.3365/KJMM.2010.48.05.445

Bi-Te Core/Shell nanowires synthesis based on On-fiim formation of nanowires method for thermoelectric applications

Joohoon Kang, Jinhee Ham, Jong Wook Roh, Jin Seo Noh, Wooyoung Lee

Yonsei University

Research output: Contribution to journal › Article › peer-review

Abstract

For an enhanced thermoelectric performance, one-dimensional heterostructure nanowires were created that consisted of aBi core and Te shell. The structure was fabricated by depositing Te in-situ onto a Bi nanowire grown by our unique OFF-ON (on-film formation of nanowires) method. After examining a cross-sectional TEM image, it was found that diffusive interface was formed between Bi and Te. Selected area electron diffraction revealed that the crystallinity of the Te shell was some what lower compared to the highly single-crystalline Bi core. The Bi-Te core/shell nanowires can be a smart structure that suppresses phonon transport by several scattering mechanisms, making the OFF-ON method the simplest way to realize that structure.

Original language	English
Pages (from-to)	445-448
Number of pages	4
Journal	Journal of Korean Institute of Metals and Materials
Volume	48
Issue number	5
DOIs	https://doi.org/10.3365/KJMM.2010.48.05.445
State	Published - May 2010

Keywords

Deposition
Microstructure
Nanostructured materials
Thermal conductivity
Thermoelectic materials

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10.3365/KJMM.2010.48.05.445

Cite this

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title = "Bi-Te Core/Shell nanowires synthesis based on On-fiim formation of nanowires method for thermoelectric applications",

abstract = "For an enhanced thermoelectric performance, one-dimensional heterostructure nanowires were created that consisted of aBi core and Te shell. The structure was fabricated by depositing Te in-situ onto a Bi nanowire grown by our unique OFF-ON (on-film formation of nanowires) method. After examining a cross-sectional TEM image, it was found that diffusive interface was formed between Bi and Te. Selected area electron diffraction revealed that the crystallinity of the Te shell was some what lower compared to the highly single-crystalline Bi core. The Bi-Te core/shell nanowires can be a smart structure that suppresses phonon transport by several scattering mechanisms, making the OFF-ON method the simplest way to realize that structure.",

keywords = "Deposition, Microstructure, Nanostructured materials, Thermal conductivity, Thermoelectic materials",

author = "Joohoon Kang and Jinhee Ham and {Wook Roh}, Jong and Noh, {Jin Seo} and Wooyoung Lee",

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T1 - Bi-Te Core/Shell nanowires synthesis based on On-fiim formation of nanowires method for thermoelectric applications

AU - Kang, Joohoon

AU - Ham, Jinhee

AU - Wook Roh, Jong

AU - Noh, Jin Seo

AU - Lee, Wooyoung

PY - 2010/5

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N2 - For an enhanced thermoelectric performance, one-dimensional heterostructure nanowires were created that consisted of aBi core and Te shell. The structure was fabricated by depositing Te in-situ onto a Bi nanowire grown by our unique OFF-ON (on-film formation of nanowires) method. After examining a cross-sectional TEM image, it was found that diffusive interface was formed between Bi and Te. Selected area electron diffraction revealed that the crystallinity of the Te shell was some what lower compared to the highly single-crystalline Bi core. The Bi-Te core/shell nanowires can be a smart structure that suppresses phonon transport by several scattering mechanisms, making the OFF-ON method the simplest way to realize that structure.

AB - For an enhanced thermoelectric performance, one-dimensional heterostructure nanowires were created that consisted of aBi core and Te shell. The structure was fabricated by depositing Te in-situ onto a Bi nanowire grown by our unique OFF-ON (on-film formation of nanowires) method. After examining a cross-sectional TEM image, it was found that diffusive interface was formed between Bi and Te. Selected area electron diffraction revealed that the crystallinity of the Te shell was some what lower compared to the highly single-crystalline Bi core. The Bi-Te core/shell nanowires can be a smart structure that suppresses phonon transport by several scattering mechanisms, making the OFF-ON method the simplest way to realize that structure.

KW - Deposition

KW - Microstructure

KW - Nanostructured materials

KW - Thermal conductivity

KW - Thermoelectic materials

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Bi-Te Core/Shell nanowires synthesis based on On-fiim formation of nanowires method for thermoelectric applications

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Keywords

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