Enhanced thermoelectric properties of germanium powder/poly(3,4- ethylenedioxythiophene):poly(4-styrenesulfonate) composites

Gyeong Ock Park, Jong Wook Roh, Jeongmin Kim, Kang Yeol Lee, Byungjin Jang, Kyu Hyoung Lee, Wooyoung Lee

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We herein report on the enhanced thermoelectric properties of poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS)/Ge composite films fabricated by drop-casting of a solution of Ge powder in PEDOT:PSS. The power factor of the fabricated PEDOT:PSS/Ge composite films with 29.6 wt.% Ge was 165 μW m- 1K- 2, and they exhibited an extremely low thermal conductivity. The maximum thermoelectric figure of merit was anticipated to be ∼ 0.1 at room temperature for the PEDOT:PSS/Ge composite films with 29.6 wt.% Ge, suggesting that their heterostructure was effective in enhancing their thermoelectric efficiency.

Original languageEnglish
Pages (from-to)14-18
Number of pages5
JournalThin Solid Films
Volume566
DOIs
Publication statusPublished - 2014 Sep 1

Fingerprint

Germanium
Composite films
Powders
germanium
composite materials
Composite materials
figure of merit
Heterojunctions
Thermal conductivity
Casting
thermal conductivity
room temperature
poly(3,4-ethylene dioxythiophene)
Temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

Park, Gyeong Ock ; Roh, Jong Wook ; Kim, Jeongmin ; Lee, Kang Yeol ; Jang, Byungjin ; Lee, Kyu Hyoung ; Lee, Wooyoung. / Enhanced thermoelectric properties of germanium powder/poly(3,4- ethylenedioxythiophene):poly(4-styrenesulfonate) composites. In: Thin Solid Films. 2014 ; Vol. 566. pp. 14-18.
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abstract = "We herein report on the enhanced thermoelectric properties of poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS)/Ge composite films fabricated by drop-casting of a solution of Ge powder in PEDOT:PSS. The power factor of the fabricated PEDOT:PSS/Ge composite films with 29.6 wt.{\%} Ge was 165 μW m- 1K- 2, and they exhibited an extremely low thermal conductivity. The maximum thermoelectric figure of merit was anticipated to be ∼ 0.1 at room temperature for the PEDOT:PSS/Ge composite films with 29.6 wt.{\%} Ge, suggesting that their heterostructure was effective in enhancing their thermoelectric efficiency.",
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Enhanced thermoelectric properties of germanium powder/poly(3,4- ethylenedioxythiophene):poly(4-styrenesulfonate) composites. / Park, Gyeong Ock; Roh, Jong Wook; Kim, Jeongmin; Lee, Kang Yeol; Jang, Byungjin; Lee, Kyu Hyoung; Lee, Wooyoung.

In: Thin Solid Films, Vol. 566, 01.09.2014, p. 14-18.

Research output: Contribution to journalArticle

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AU - Lee, Wooyoung

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AB - We herein report on the enhanced thermoelectric properties of poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS)/Ge composite films fabricated by drop-casting of a solution of Ge powder in PEDOT:PSS. The power factor of the fabricated PEDOT:PSS/Ge composite films with 29.6 wt.% Ge was 165 μW m- 1K- 2, and they exhibited an extremely low thermal conductivity. The maximum thermoelectric figure of merit was anticipated to be ∼ 0.1 at room temperature for the PEDOT:PSS/Ge composite films with 29.6 wt.% Ge, suggesting that their heterostructure was effective in enhancing their thermoelectric efficiency.

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