Synthesis and thermoelectric characterization of bulk-type tellurium nanowire/polymer nanocomposites

Seil Kim; Young In Lee; Seung Han Ryu; Tae Yeon Hwang; Yoseb Song; Sungho Seo; Bongyoung Yoo; Jae Hong Lim; Hong Baek Cho; Nosang V. Myung; Yong Ho Choa

doi:10.1007/s10853-017-1384-z

Synthesis and thermoelectric characterization of bulk-type tellurium nanowire/polymer nanocomposites

Seil Kim, Young In Lee, Seung Han Ryu, Tae Yeon Hwang, Yoseb Song, Sungho Seo, Bongyoung Yoo, Jae Hong Lim, Hong Baek Cho, Nosang V. Myung, Yong Ho Choa

Dept. of Materials Science & Engineering

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

10 Scopus citations

Abstract

A simple method to fabricate three-dimensionally (3-D) aligned thermoelectric nanowires attached polymer particle was demonstrated by combination of solution casting of thermoelectric nanostructures (e.g., tellurium nanowires (Te NWs)) on the surface of thermoplastic polymer (e.g., poly(methyl methacrylate (PMMA)) microbeads followed by hot compaction of thermoplastic matrix. The percolation threshold of composite with 3-D assembled Te NWs (i.e., 3.45 vol%) significantly was lower than that of a randomly dispersed Te NWs (i.e., 5.26 vol%), which resulted in an order of magnitude greater thermoelectric figure of merit (ZT of 2.8 × 10⁻³) compared to randomly dispersed Te NWs in PMMA matrix (ZT of 6.4 × 10⁻⁴) at room temperature by enhancing the electrical conductivity without increasing thermal conductivity.

Original language	English
Pages (from-to)	12724-12733
Number of pages	10
Journal	Journal of Materials Science
Volume	52
Issue number	21
DOIs	https://doi.org/10.1007/s10853-017-1384-z
State	Published - 1 Nov 2017

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title = "Synthesis and thermoelectric characterization of bulk-type tellurium nanowire/polymer nanocomposites",

abstract = "A simple method to fabricate three-dimensionally (3-D) aligned thermoelectric nanowires attached polymer particle was demonstrated by combination of solution casting of thermoelectric nanostructures (e.g., tellurium nanowires (Te NWs)) on the surface of thermoplastic polymer (e.g., poly(methyl methacrylate (PMMA)) microbeads followed by hot compaction of thermoplastic matrix. The percolation threshold of composite with 3-D assembled Te NWs (i.e., 3.45 vol\%) significantly was lower than that of a randomly dispersed Te NWs (i.e., 5.26 vol\%), which resulted in an order of magnitude greater thermoelectric figure of merit (ZT of 2.8 × 10−3) compared to randomly dispersed Te NWs in PMMA matrix (ZT of 6.4 × 10−4) at room temperature by enhancing the electrical conductivity without increasing thermal conductivity.",

author = "Seil Kim and Lee, \{Young In\} and Ryu, \{Seung Han\} and Hwang, \{Tae Yeon\} and Yoseb Song and Sungho Seo and Bongyoung Yoo and Lim, \{Jae Hong\} and Cho, \{Hong Baek\} and Myung, \{Nosang V.\} and Choa, \{Yong Ho\}",

note = "Publisher Copyright: {\textcopyright} 2017, Springer Science+Business Media, LLC.",

year = "2017",

month = nov,

day = "1",

doi = "10.1007/s10853-017-1384-z",

language = "English",

volume = "52",

pages = "12724--12733",

journal = "Journal of Materials Science",

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TY - JOUR

T1 - Synthesis and thermoelectric characterization of bulk-type tellurium nanowire/polymer nanocomposites

AU - Kim, Seil

AU - Lee, Young In

AU - Ryu, Seung Han

AU - Hwang, Tae Yeon

AU - Song, Yoseb

AU - Seo, Sungho

AU - Yoo, Bongyoung

AU - Lim, Jae Hong

AU - Cho, Hong Baek

AU - Myung, Nosang V.

AU - Choa, Yong Ho

PY - 2017/11/1

Y1 - 2017/11/1

N2 - A simple method to fabricate three-dimensionally (3-D) aligned thermoelectric nanowires attached polymer particle was demonstrated by combination of solution casting of thermoelectric nanostructures (e.g., tellurium nanowires (Te NWs)) on the surface of thermoplastic polymer (e.g., poly(methyl methacrylate (PMMA)) microbeads followed by hot compaction of thermoplastic matrix. The percolation threshold of composite with 3-D assembled Te NWs (i.e., 3.45 vol%) significantly was lower than that of a randomly dispersed Te NWs (i.e., 5.26 vol%), which resulted in an order of magnitude greater thermoelectric figure of merit (ZT of 2.8 × 10−3) compared to randomly dispersed Te NWs in PMMA matrix (ZT of 6.4 × 10−4) at room temperature by enhancing the electrical conductivity without increasing thermal conductivity.

AB - A simple method to fabricate three-dimensionally (3-D) aligned thermoelectric nanowires attached polymer particle was demonstrated by combination of solution casting of thermoelectric nanostructures (e.g., tellurium nanowires (Te NWs)) on the surface of thermoplastic polymer (e.g., poly(methyl methacrylate (PMMA)) microbeads followed by hot compaction of thermoplastic matrix. The percolation threshold of composite with 3-D assembled Te NWs (i.e., 3.45 vol%) significantly was lower than that of a randomly dispersed Te NWs (i.e., 5.26 vol%), which resulted in an order of magnitude greater thermoelectric figure of merit (ZT of 2.8 × 10−3) compared to randomly dispersed Te NWs in PMMA matrix (ZT of 6.4 × 10−4) at room temperature by enhancing the electrical conductivity without increasing thermal conductivity.

UR - https://www.scopus.com/pages/publications/85026469775

U2 - 10.1007/s10853-017-1384-z

DO - 10.1007/s10853-017-1384-z

M3 - Article

AN - SCOPUS:85026469775

SN - 0022-2461

VL - 52

SP - 12724

EP - 12733

JO - Journal of Materials Science

JF - Journal of Materials Science

IS - 21

ER -

Synthesis and thermoelectric characterization of bulk-type tellurium nanowire/polymer nanocomposites

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