Flexible and free-standing thermoelectric devices prepared from poly(vinylidene fluoride-co-hexafluoropropylene)/graphite nanoplatelet/single-walled carbon nanotube composite films

O. Hwan Kwon, Jinmi Kim, Won Gun Koh, Young Hun Kang, Kwang Suk Jang, Song Yun Cho, Youngjae Yoo

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this study, poly(vinylidene fluoride-co-hexafluoropropylene)/carbon composite films with enhanced thermoelectric performance are prepared. A hybrid filler of graphite nanoplatelets (GNPs) and single-walled carbon nanotubes (SWNTs) increase the electrical conductivity as a bridge between neighboring GNPs in the carbon hybrid films. The improved electrical conductivity is due to the purification process performed in an acid solution, which effectively removes the amorphous carbon, additives, and impurities in the carbon fillers. The Seebeck coefficient of the composite films is similarly maintained at approximately 40 μV/K owing to the intrinsic properties of the material. The calculated power factor is considerably increased to approximately 14 μW/mK 2 owing to purification of the SWNTs, which is twice the value of the highest value reported value for freestanding-type thermoelectric materials based on polymer/carbon composites.

Original languageEnglish
Pages (from-to)199-205
Number of pages7
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume243
DOIs
Publication statusPublished - 2019 Apr

Fingerprint

Graphite
Composite films
Single-walled carbon nanotubes (SWCN)
vinylidene
fluorides
Carbon
graphite
carbon nanotubes
Purification
composite materials
Fillers
carbon
fillers
Seebeck coefficient
purification
Carbon films
Amorphous carbon
Polymers
electrical resistivity
thermoelectric materials

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

@article{7f829d5dc218485caafd6fc52e8f7393,
title = "Flexible and free-standing thermoelectric devices prepared from poly(vinylidene fluoride-co-hexafluoropropylene)/graphite nanoplatelet/single-walled carbon nanotube composite films",
abstract = "In this study, poly(vinylidene fluoride-co-hexafluoropropylene)/carbon composite films with enhanced thermoelectric performance are prepared. A hybrid filler of graphite nanoplatelets (GNPs) and single-walled carbon nanotubes (SWNTs) increase the electrical conductivity as a bridge between neighboring GNPs in the carbon hybrid films. The improved electrical conductivity is due to the purification process performed in an acid solution, which effectively removes the amorphous carbon, additives, and impurities in the carbon fillers. The Seebeck coefficient of the composite films is similarly maintained at approximately 40 μV/K owing to the intrinsic properties of the material. The calculated power factor is considerably increased to approximately 14 μW/mK 2 owing to purification of the SWNTs, which is twice the value of the highest value reported value for freestanding-type thermoelectric materials based on polymer/carbon composites.",
author = "{Hwan Kwon}, O. and Jinmi Kim and Koh, {Won Gun} and Kang, {Young Hun} and Jang, {Kwang Suk} and Cho, {Song Yun} and Youngjae Yoo",
year = "2019",
month = "4",
doi = "10.1016/j.mseb.2019.04.015",
language = "English",
volume = "243",
pages = "199--205",
journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",
issn = "0921-5107",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Flexible and free-standing thermoelectric devices prepared from poly(vinylidene fluoride-co-hexafluoropropylene)/graphite nanoplatelet/single-walled carbon nanotube composite films

AU - Hwan Kwon, O.

AU - Kim, Jinmi

AU - Koh, Won Gun

AU - Kang, Young Hun

AU - Jang, Kwang Suk

AU - Cho, Song Yun

AU - Yoo, Youngjae

PY - 2019/4

Y1 - 2019/4

N2 - In this study, poly(vinylidene fluoride-co-hexafluoropropylene)/carbon composite films with enhanced thermoelectric performance are prepared. A hybrid filler of graphite nanoplatelets (GNPs) and single-walled carbon nanotubes (SWNTs) increase the electrical conductivity as a bridge between neighboring GNPs in the carbon hybrid films. The improved electrical conductivity is due to the purification process performed in an acid solution, which effectively removes the amorphous carbon, additives, and impurities in the carbon fillers. The Seebeck coefficient of the composite films is similarly maintained at approximately 40 μV/K owing to the intrinsic properties of the material. The calculated power factor is considerably increased to approximately 14 μW/mK 2 owing to purification of the SWNTs, which is twice the value of the highest value reported value for freestanding-type thermoelectric materials based on polymer/carbon composites.

AB - In this study, poly(vinylidene fluoride-co-hexafluoropropylene)/carbon composite films with enhanced thermoelectric performance are prepared. A hybrid filler of graphite nanoplatelets (GNPs) and single-walled carbon nanotubes (SWNTs) increase the electrical conductivity as a bridge between neighboring GNPs in the carbon hybrid films. The improved electrical conductivity is due to the purification process performed in an acid solution, which effectively removes the amorphous carbon, additives, and impurities in the carbon fillers. The Seebeck coefficient of the composite films is similarly maintained at approximately 40 μV/K owing to the intrinsic properties of the material. The calculated power factor is considerably increased to approximately 14 μW/mK 2 owing to purification of the SWNTs, which is twice the value of the highest value reported value for freestanding-type thermoelectric materials based on polymer/carbon composites.

UR - http://www.scopus.com/inward/record.url?scp=85064171409&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85064171409&partnerID=8YFLogxK

U2 - 10.1016/j.mseb.2019.04.015

DO - 10.1016/j.mseb.2019.04.015

M3 - Article

AN - SCOPUS:85064171409

VL - 243

SP - 199

EP - 205

JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology

JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology

SN - 0921-5107

ER -