The growing energy demands for wearable electronic devices has shifted the attention of scientific community towards flexible thermoelectric materials and devices; the main goal being the enhancement of the thermoelectric and conducting properties of such systems, without sacrificing their flexibility. This paper reports the enhancement of the thermoelectric properties of flexible Poly(3,4-ethylenedioxythiophene), (PEDOT), films with acid (HCl) exposure. Relative high conductive, flexible and uniform PEDOT/polyurethane(PU) and (PEDOT)/polyvinylidene fluoride (PVDF) films were prepared, separately. The films were dipped into acid solution with the exposure time of 5, 10, and 15 min. The sheet resistance (Ω/sq), electrical conductivity (σ), Seebeck coefficient (S) and thermoelectric power factor (σS2) were measured for those systems. The thermoelectric behavior of both films was optimized with different exposure times in acid solution, while the thermoelectric properties of the PEDOT/PVDF films remained unchanged with this treatment. The Seebeck coefficient and thermoelectric power of PEDOT/PU enhanced from 9.01 to 12.6 µV/K and from 7.4×10–2 to 12.2×10−2 µW/mK2, respectively for a 10 min exposure. The origin of this enhancement was tracked down to modifications in the surface morphology of the films, identified through AFM microscopy. The presented results indicate that acid treatment is a potential and promising approach to enhance the thermoelectric properties of PEDOT/PU films for flexible, conformable and low-cost TE applications.
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25 July 2019
CENTRAL EUROPEAN SYMPOSIUM ON THERMOPHYSICS 2019 (CEST)
16–18 October 2019
Banska Bystrica, Slovakia
Research Article|
July 25 2019
Thermoelectric properties of flexible PEDOT/PU and PEDOT/PVDF films Available to Purchase
Nuri Karakurt;
Nuri Karakurt
a)
1
Centre of Polymer Systems, University Institute, Tomas Bata University
, Tr. T. Bati 5678, 760 01, Zlin, Czech Republic
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Ioannis Petsagkourakis;
Ioannis Petsagkourakis
b)
2
Laboratory of Organic Electronics, Department of Science and Technology, Linköping University
, Bredgatan 33, 601 74, Norrköping, Sweden
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Nara Kim;
Nara Kim
c)
2
Laboratory of Organic Electronics, Department of Science and Technology, Linköping University
, Bredgatan 33, 601 74, Norrköping, Sweden
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Klas Tybrandt;
Klas Tybrandt
d)
2
Laboratory of Organic Electronics, Department of Science and Technology, Linköping University
, Bredgatan 33, 601 74, Norrköping, Sweden
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Xavier Crispin;
Xavier Crispin
e)
2
Laboratory of Organic Electronics, Department of Science and Technology, Linköping University
, Bredgatan 33, 601 74, Norrköping, Sweden
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Dusan Kimmer;
Dusan Kimmer
f)
1
Centre of Polymer Systems, University Institute, Tomas Bata University
, Tr. T. Bati 5678, 760 01, Zlin, Czech Republic
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Petr Slobodian
Petr Slobodian
g)
1
Centre of Polymer Systems, University Institute, Tomas Bata University
, Tr. T. Bati 5678, 760 01, Zlin, Czech Republic
g)Corresponding author: [email protected]
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Nuri Karakurt
1,a)
Ioannis Petsagkourakis
2,b)
Nara Kim
2,c)
Klas Tybrandt
2,d)
Xavier Crispin
2,e)
Dusan Kimmer
1,f)
Petr Slobodian
1,g)
1
Centre of Polymer Systems, University Institute, Tomas Bata University
, Tr. T. Bati 5678, 760 01, Zlin, Czech Republic
2
Laboratory of Organic Electronics, Department of Science and Technology, Linköping University
, Bredgatan 33, 601 74, Norrköping, Sweden
AIP Conf. Proc. 2133, 020032 (2019)
Citation
Nuri Karakurt, Ioannis Petsagkourakis, Nara Kim, Klas Tybrandt, Xavier Crispin, Dusan Kimmer, Petr Slobodian; Thermoelectric properties of flexible PEDOT/PU and PEDOT/PVDF films. AIP Conf. Proc. 25 July 2019; 2133 (1): 020032. https://doi.org/10.1063/1.5120162
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