Sulfuric acid vapor treatment for enhancing the thermoelectric properties of PEDOT:PSS thin-films

  • Jaeyun Kim
  • Jae Gyu Jang
  • Jong-In Hong
  • Sung Hyun Kim
  • Jeonghun Kwak


We introduce a sulfuric acid vapor treatment method to enhance the thermoelectric (TE) performance of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) thin-films. The H2SO4 vapor treatment brought about the reduction of Coulomb interaction between PEDOT and PSS chains and structural rearrangement of PEDOT:PSS as expanded coil-like nanostructure. We studied the effects of the H2SO4 vapor treatment on the electrical conductivity and TE properties of PEDOT:PSS thin-films at various treatment temperatures. By the H2SO4 vapor treatment at 140 °C, both electrical conductivity and Seebeck coefficient of the PEDOT:PSS thin-film were improved from 1.1 to 1167 S/cm, and from 7.3 to 12.1 μV/K, respectively. At this condition, the maximum power factor of 17.0 μW/mK2 was obtained, which is higher than that of the pristine PEDOT:PSS film (0.006 μW/mK2) by the factor of 2833. Because the H2SO4 vapor treatment method introduced here has advantages in the large-area process and the film uniformity, we believe that the method can be applicable to various organic electronic devices using PEDOT:PSS as well as TE devices.


Power Factor PbTe Bi2Te3 Seebeck Coefficient High Power Factor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2014R1A1A2055322 and NRF-2015R1D1A1A01060185).


  1. 1.
    R. Yue, J. Xu, Synth. Met. 162, 912 (2012)CrossRefGoogle Scholar
  2. 2.
    M. Culebras, C.M. Gómez, A. Cantarero, Materials 7, 6701 (2014)CrossRefGoogle Scholar
  3. 3.
    M. He, F. Qiu, Z. Lin, Energy Environ. Sci. 6, 1352 (2013)CrossRefGoogle Scholar
  4. 4.
    B. Poudel, Q. Hao, Y. Ma, Y. Lan, A. Minnich, B. Yu, X. Yan, D. Wang, A. Muto, D. Vashaee, X. Chen, J. Liu, M.S. Dresselhaus, G. Chen, Z. Ren, Science 320, 634 (2008)CrossRefGoogle Scholar
  5. 5.
    Y. Pei, X. Shi, A. LaLonde, H. Wang, L. Chen, G.J. Snyder, Nature 473, 66 (2011)CrossRefGoogle Scholar
  6. 6.
    G.-H. Kim, L. Shao, K. Zhang, K.P. Pipe, Nat. Mater. 12, 719 (2013)CrossRefGoogle Scholar
  7. 7.
    K. Sun, S. Zhang, P. Li, Y. Xia, X. Zhang, D. Du, F.H. Isikgor, J. Ouyang, J. Mater. Sci. Mater. Electron. 26, 4438 (2015)CrossRefGoogle Scholar
  8. 8.
    E. Yang, J. Kim, B.J. Jung, J. Kwak, J. Mater. Sci. Mater. Electron. 26, 2838 (2015)CrossRefGoogle Scholar
  9. 9.
    O. Bubnova, Z.U. Khan, A. Malti, S. Braun, M. Fahlman, M. Berggren, X. Crispin, Nat. Mater. 10, 429 (2011)CrossRefGoogle Scholar
  10. 10.
    M. Culebras, C.M. Gómez, A. Cantarero, J. Mater. Chem. A 2, 10109 (2014)CrossRefGoogle Scholar
  11. 11.
    Y. Xia, K. Sun, J. Ouyang, Adv. Mater. 24, 2436 (2012)CrossRefGoogle Scholar
  12. 12.
    D. Kim, Y. Kim, K. Choi, J.C. Grunlan, C. Yu, ACS Nano 1, 513 (2010)CrossRefGoogle Scholar
  13. 13.
    K. Xu, G. Chen, D. Qiu, J. Mater. Chem. A 1, 12395 (2013)CrossRefGoogle Scholar
  14. 14.
    Q. Jiang, C. Liu, J. Xu, B. Lu, H. Song, H. Shi, Y. Yao, L. Zhang, J. Polym. Sci. Part B Polym. Phys. 52, 737 (2014)CrossRefGoogle Scholar
  15. 15.
    Z. Zhang, G. Chen, H. Wang, X. Li, Chem. Asian J. 10, 149 (2015)CrossRefGoogle Scholar
  16. 16.
    Q. Jiang, C. Liu, H. Song, J. Xu, D. Mo, H. Shi, Z. Wang, F. Jiang, B. Lu, Z. Zhu, Int. J. Electrochem. Sci. 9, 7540 (2014)Google Scholar
  17. 17.
    N. Massonnet, A. Carella, O. Jaudouin, P. Rannou, G. Laval, C. Celle, J.-P. Simonato, J. Mater. Chem. C 2, 1278 (2014)CrossRefGoogle Scholar
  18. 18.
    L. Zhang, H. Deng, S. Liu, Q. Zhang, F. Chen, Q. Fu, RSC Adv. 5, 105592 (2015)CrossRefGoogle Scholar
  19. 19.
    Q. Jiang, C. Liu, H. Song, H. Shi, Y. Yao, J. Xu, G. Zhang, B. Lu, J. Mater. Sci. Mater. Electron. 24, 4240 (2013)CrossRefGoogle Scholar
  20. 20.
    J. Luo, D. Billep, T. Waechtler, T. Otto, M. Toader, O. Gordan, E. Sheremet, J. Martin, M. Hietschold, D.R.T. Zahn, T. Gessner, J. Mater. Chem. A 1, 7576 (2013)CrossRefGoogle Scholar
  21. 21.
    T. Park, C. Park, B. Kim, H. Shin, E. Kim, Energy Environ. Sci. 6, 788 (2013)CrossRefGoogle Scholar
  22. 22.
    J. Wang, K. Cai, S. Shen, Org. Electron. 17, 151 (2015)CrossRefGoogle Scholar
  23. 23.
    J. Wang, K. Cai, S. Shen, Org. Electron. 15, 3087 (2014)CrossRefGoogle Scholar
  24. 24.
    S. van Reenen, M. Scheepers, K. van de Ruit, D. Bollen, M. Kemerink, Org. Electron. 15, 3710 (2014)CrossRefGoogle Scholar
  25. 25.
    O.P. Dimitriev, D.A. Grinko, Y.V. Noskov, N.A. Ogurtsov, A.A. Pud, Synth. Met. 159, 2237 (2009)CrossRefGoogle Scholar
  26. 26.
    Y. Kim, A.M. Ballantyne, J. Nelson, D.D.C. Bradley, Org. Electron. 10, 205 (2009)CrossRefGoogle Scholar
  27. 27.
    U. Lang, E. Müller, N. Naujoks, J. Dual, Adv. Funct. Mater. 19, 1215 (2009)CrossRefGoogle Scholar
  28. 28.
    J. Huang, P.F. Miller, J.S. Wilson, A.J. de Mello, J.C. de Mello, D.D.C. Bradley, Adv. Funct. Mater. 15, 290 (2005)CrossRefGoogle Scholar
  29. 29.
    N.N. Greenwood, A. Earnshaw, Chemistry of the Elements (Butterworth-Heinemann, Oxford, 1997)Google Scholar
  30. 30.
    N. Kim, B.H. Lee, D. Choi, G. Kim, H. Kim, J.-R. Kim, J. Lee, Y.H. Kahng, K. Lee, Phys. Rev. Lett. 109, 106405 (2012)CrossRefGoogle Scholar
  31. 31.
    E.-G. Kim, J.-L. Brédas, J. Am. Chem. Soc. 130, 16880 (2008)CrossRefGoogle Scholar
  32. 32.
    X. Guo, N. Zhou, S.J. Lou, J.W. Hennek, R.P. Ortiz, M.R. Butler, P.-L.T. Boudreault, J. Strzalka, P.-O. Morin, M. Leclerc, J.T.L. Navarrete, M.A. Ratner, L.X. Chen, R.P.H. Chang, A. Facchetti, T.J. Marks, J. Am. Chem. Soc. 134, 18427 (2012)CrossRefGoogle Scholar
  33. 33.
    S.B. Darling, J. Phys. Chem. B 112, 8891 (2008)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.School of Electrical and Computer EngineeringThe University of SeoulSeoulKorea
  2. 2.Department of ChemistrySeoul National UniversitySeoulKorea

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