Abstract
Thermoelectric (TE) properties of free-standing poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate) (PEDOT:PSS) films treated with camphorsulfonic acid (CSA) and left hand camphorsulfonic acid (L-CSA) have been systematically investigated utilizing two different methods: addition of CSA/L-CSA into the PEDOT:PSS solution; or post treatment of free-standing PEDOT:PSS films with different concentration of CSA/L-CSA solution. It is verified that the post-treatment method is much more effective than the direct addition of CSA/L-CSA into the PEDOT:PSS solution. Using post-treatment method, the highest electrical conductivity can increase up to 644.7 S/cm, which is much higher than that of the direct addition method, ~206.2 S/cm at room temperature. In both cases, there is trivial change in the Seebeck coefficient. The maximum value of ZT is 0.017 at room temperature for the PEDOT:PSS film post-treated by 0.08 M CSA solution. These results demonstrate that post treatment is a promising approach to enhance the TE properties of PEDOT:PSS thin films. The difference in optical activity between CSA and L-CSA also has an effect on the electrical conductivity of PEDOT:PSS.
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References
Hochbaum AI, Chen RK, Delgado RD, Liang WJ, Garnett EC, Najarian M, Majumdar A, Yang PD (2008) Nature 451:163–167
Harman TC, Taylor PJ, Walsh MP, LaForge BE (2002) Science 297:2229–2232
Sales BC, Mandrus D, Williams RK (1996) Science 272:1325–1328
Bell LE (2008) Science 321:1457–1461
Sootsman JR, Chung DY, Kanatzidis MG (2009) Angew Chem Int Ed 48:8616–8639
Minnich AJ, Dresselhaus MS, Ren ZF, Chen G (2009) Energy Environ Sci 2:466–479
Li JJ, Tang XF, Li H, Yan YG, Zhang QJ (2010) Synth Met 160:1153–1158
Meng CZ, Liu CH, Fan SS (2010) Adv Mater 22:535–539
Lu BY, Liu CC, Lu S, Xu JK, Jiang FX, Li YZ, Zhang Z (2010) Chin Phys Lett 27:057201/1-4
Choi ES, Seol YH, Song YS, Park YW (1997) Synth Met 84:747–748
Aich RB, Blouin N, Bouchard A, Leclerc M (2009) Chem Mater 21:751–757
Yan H, Ohno N, Toshima N (2000) Chem Lett 29:392–393
Yan H, Sada N, Toshima N, Therm J (2002) Anal Calorim 69:881–887
Kaul PB, Day KA, Abramson AR (2007) J Appl Phys 101:083507/1-7
Wang YJ (2009) J Phys Conf Ser 152:012023/1-10
Jiang FX, Xu JK, Lu BY, Xie Y, Huang RJ, Li LF (2008) Chin Phys Lett 25:2202–2205
Chang KC, Jeng MS, Yang CC, Chou YW, Wu SK, Thomas MA, Peng YC, Electron J (2009) Materials 38:1182–1188
Zhang B, Sun J, Katz HE, Fang F, Opila RL (2010) ACS Appl Mater Inter 2:3170–3178
See KC, Feser JP, Chen CE, Majumdar A, Urban JJ, Segalman RA (2010) Nano Lett 10:4664–4667
Kim JY, Jung JH, Lee DE, Joo J (2002) Synth Met 126:311–316
Joñsson SKM, Birgerson J, Crispin X, Greczynski G, Osikowicz W, van der Gon AWD, Salaneck WR, Fahlman M (2003) Synth Met 139:1–10
Ouyang J, Xu Q, Chu CW, Yang Y, Li G, Shinar J (2004) Polymer 85:8443–8450
Crispin X, Jakobsson FLE, Crispin A, Grim PCM, Andersson P, Volodin A, van Haesendonck C, Van der Auweraer M, Salaneck WR, Berggren M (2006) Chem Mater 18:4354–4360
Nardes AM, Kemerink M, de Kok MM, Vinken E, Maturova K, Janssen RAJ (2008) Org Electron 9:727–734
Nardes AM, Janssen RAJ, Kemerink M (2008) Adv Funct Mater 18:865–871
Xia Y, Ouyang J (2010) ACS Appl Mater Interfaces 2:474–483
Yan H, Ohno N, Toshima N (2000) Chem Lett 392–393
Yan H, Ohno T, Toshima N (2001) Macromol Mater Eng 286:139–142
Hiroshige Y, Ookawa M, Toshima N (2007) Synth Met 157:467–474
Fan BH, Mei XG, Ouyang J (2008) Macromolecules 41:5971–5973
Xia YJ, Ouyang J (2009) Macromolecules 42:4141–4147
Scholdt M, Do H, Lang J, Gall A, Colsmann A, Lemmer U, Koenig JD, Winkler M, Boettner H, Electron J (2010) Materials 39:1589–1592
Sparavigna AC, Florio L, Avloni J, Henn A (2010) Mater Sci Appl 1:253–259
Guckelsberger K, Rodhammer P, Gmelin E, Peo M, Menke K, Hocker J, Roth S, Dransfeld K (1981) Phys B: Condens Matter 43:189–191
Kaiser AB (1984) Phys Rev B 29:7088–7091
Moses D, Denenstein A (1984) Phys Rev B 30:2090–2097
Lunn BA, Unsworth J, Booth NG, Innis PC, Mater J (1993) Science 28:5092–5098
Shakouri A, Li S, In: Proceedings of International Conference on Thermoelectrics, Baltimore, USA, September 1999.
Luo J, Billep D, Waechtler T, Otto T, Toader M, Gordan O, Sheremet E, Martin J, Hietschold M, Zahn DRT, Gessner T, Mater J (2013) Chem A 1:7576–7583
Moriarty GP, De S, King PJ, Khan U, Via M, King JA, Coleman JN, Grunlan JC (2013) J Polym Sci B 51:119–123
Acknowledgments
This work was supported by the National Natural Science Foundation of China (51203070 & 51073074) and Jiangxi Provincial Department of Education (GJJ12595 & GJJ11590 & GJJ13565).
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Song, H., Kong, F., Liu, C. et al. Improved thermoelectric performance of PEDOT:PSS film treated with camphorsulfonic acid. J Polym Res 20, 316 (2013). https://doi.org/10.1007/s10965-013-0316-0
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DOI: https://doi.org/10.1007/s10965-013-0316-0
Keywords
- Thermoelectrics
- PEDOT:PSS
- Camphorsulfonic acid
- Electrical conductivity
- Seebeck coefficient