Skip to main content
SpringerLink
Log in

Photoinduced charge dissociation and transport at P3HT/ITO interfaces: studied by modulated surface spectroscopy

Applied Physics A volume 122, Article number: 77 (2016) Cite this article

Abstract

Results of a temperature dependence study of photoinduced charge separation across P3HT nanocrystals at P3HT/ITO interfaces have been investigated by modulated surface photovoltage (SPV) spectroscopy in a fixed capacitor arrangement. The SPV measurements were correlated with the crystalline sizes of P3HT nanocrystals determined by grazing incidence X-ray diffraction (GIXRD). The crystalline sizes of P3HT nanocrystals were varied systematically by progressive heating/cooling cycles identical for SPV and GIXRD measurements. Photovoltage signals, indication of photoinduced charge dissociation in space, at the P3HT/ITO interface were collected, and electrons were separated across the first monolayer of P3HT nanocrystals at the P3HT/ITO interface due to band bending. The activation energies for quenching of the in-phase and phase-shifted by 90° SPV signals were 0.7 and 0.6 eV, respectively. Thermal activation of the formation of P3HT nanocrystals was of the same order as the enthalpy of fusion of ideal crystals from regioregular P3HT. A schematic drawing of photoinduced charge separation at the P3HT/ITO is proposed.

This is a preview of subscription content, access via your institution.

Access options

Buy single article

Instant access to the full article PDF.

USD 39.95

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

References

  1. G. Lu, J. Blakesley, S. Himmelberger, P. Pingel, J. Frisch, I. Lieberwirth, I. Salzmann, M. Oehzelt, R. Di Pietro, A. Salleo, N. Koch, D. Neher, Nat. Commun. 4, 1588 (2013)

    Article  ADS  Google Scholar 

  2. Y. Kim, S. Cook, S.M. Tuladhar, S.A. Choulis, J. Nelson, J.R. Durrant, D.D.C. Bradley, M. Giles, I. McCulloch, C.-S. Ha, M. Ree, Nat. Mater. 5, 197 (2006)

    Article  ADS  Google Scholar 

  3. J. Zaumseil, in P3HT Revisited—From Molecular Scale to Solar Cell Devices, ed. by S. Ludwigs (Springer, Berlin Heidelberg, 2014), pp. 107–137

  4. G. Li, V. Shrotriya, Y. Yao, J. Huang, Y. Yang, J. Mater. Chem. 17, 3126 (2007)

    Article  Google Scholar 

  5. N. Rujisamphan, F. Deng, R.E. Murray, C. Ni, S. I. Shah, Sol. Energ. Mat. Sol. 109, 56 (2013)

    Article  Google Scholar 

  6. G. Kaune, E. Metwalli, R. Meier, V. Körstgens, K. Schlage, S. Couet, R. Röhlsberger, S.V. Roth, P. Müller-Buschbaum, ACS Appl. Mater. Interfaces 3, 1055 (2011)

    Article  Google Scholar 

  7. M. Schneider, A. Wagenpfahl, C. Deibel, V. Dyakonov, A. Schöll, F. Reinert, Org. Electron. 15, 1552 (2014)

    Article  Google Scholar 

  8. L. Kronik, Y. Shapira, Surf. Interface Anal. 31, 954 (2001)

    Article  Google Scholar 

  9. J. Durantini, M.B. Suarez, M. Santo, E. Durantini, T. Dittrich, L. Otero, M. Gervaldo, J. Phys. Chem. C 119, 4044 (2015)

    Article  Google Scholar 

  10. F.E. Osterloh, M.A. Holmes, L. Chang, A.J. Moulé, J. Zhao, J. Phys. Chem. C 117, 26905 (2013)

    Article  Google Scholar 

  11. F.E. Osterloh, M.A. Holmes, J. Zhao, L. Chang, S. Kawula, J.D. Roehling, A.J. Moulé, J. Phys. Chem. C 118, 14723 (2014)

    Article  Google Scholar 

  12. T. Supasai, N. Rujisamphan, K. Ullrich, A. Chemseddine, T. Dittrich, Appl. Phys. Lett. 103, 183906 (2013)

    Article  ADS  Google Scholar 

  13. A. Owino Juma, A. Azarpira, A. Steigert, M. Pomaska, C.-H. Fischer, I. Lauermann, T. Dittrich, J. Appl. Phys. 114, 053711 (2013)

    Article  ADS  Google Scholar 

  14. A. Patterson, Phys. Rev. 56, 978 (1939)

    Article  ADS  Google Scholar 

  15. V. Duzhko, V. Timoshenko, F. Koch, T. Dittrich, Phys. Rev. B 64, 075204 (2001)

    Article  ADS  Google Scholar 

  16. M.J.M. Wirix, P.H.H. Bomans, H. Friedrich, N.A.J.M. Sommerdijk, G. de With, Nano Lett. 14, 2033 (2014)

    Article  ADS  Google Scholar 

  17. Y. Shen, L. Scudiero, M.C. Gupta, IEEE J. Quant. Electr. 99, 51 (2012)

    Google Scholar 

  18. M. Chiesa, L. Burgi, J.S. Kim, R. Shikler, R.H. Friend, H. Sirringhaus, Nano Lett. 5, 559 (2005)

    Article  ADS  Google Scholar 

  19. S.-H. Yang, D.-M. Lee, J.-K. Kim, J.-W. Kang, J.-M. Lee, J. Phys. D Appl. Phys. 46, 125103 (2013)

    Article  ADS  Google Scholar 

  20. Y. Park, V. Choong, Y. Gao, B.R. Hsieh, C.W. Tang, Appl. Phys. Lett. 68, 2699 (1996)

    Article  ADS  Google Scholar 

  21. M.C. Scharber, D. Muehlbacher, M. Koppe, P. Denk, C. Waldauf, A.J. Heeger, C.J. Brabec, Adv. Mater. 18, 789 (2006)

    Article  Google Scholar 

  22. J.C. Blakesley, N.C. Greenham, J. Appl. Phys. 106, 034507 (2009)

    Article  ADS  Google Scholar 

  23. M.C. Heiber, A. Dhinojwala, J. Phys. Chem. C 117, 21627 (2013)

    Article  Google Scholar 

  24. M. Sim, J. Shin, C. Shim, M. Kim, S.B. Jo, J.-H. Kim, K. Cho, J. Phys. Chem. C 118, 760 (2014)

    Article  Google Scholar 

  25. S. Malik, A.K. Nandi, J. Polym. Sci. Part B Polym. Phys. 40, 2073 (2002)

    Article  ADS  Google Scholar 

Download references

Acknowledgments

N.R. is grateful to the Higher Education Research Promotion and National Research University Project of Thailand, Office of the Higher Education Commission and to T.D. for financial support, to the University of Delaware for providing the infrastructure for GIXRD measurements at the Advanced Material Characterization Lab and to Gerald Poirer for technical support in the GIXRD measurements. T.S. is grateful to the Kasetsart University Research and Development Institute (L-M 8.58) for financial support.

Author information

Authors and Affiliations

  1. Department of Physics, Faculty of Science, King Mongkut’s University of Technology Thonburi, Bangkok, 10140, Thailand

    Nopporn Rujisamphan

  2. Helmholtz Center Berlin for Materials and Energy, Institute of Heterogeneous Materials, Hahn-Meitner-Platz 1, 14109, Berlin, Germany

    Nopporn Rujisamphan & Thomas Dittrich

  3. Department of Materials Science, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand

    Thidarat Supasai

Authors
  1. Nopporn Rujisamphan
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Thidarat Supasai
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Thomas Dittrich
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Nopporn Rujisamphan.

Rights and permissions

Reprints and Permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Rujisamphan, N., Supasai, T. & Dittrich, T. Photoinduced charge dissociation and transport at P3HT/ITO interfaces: studied by modulated surface spectroscopy. Appl. Phys. A 122, 77 (2016). https://doi.org/10.1007/s00339-016-9614-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s00339-016-9614-9

Keywords

search

Navigation