Investigation of the electronic properties of cyclopentadithiophene polymers and copolymers


Cyclopentadithiophene based homopolymers and copolymers have been investigated as semiconductor layers in field effect transistors. They generally show low hole mobilities due to a disordered amorphous structure in the solid state. FET mobility can be enhanced in the homopolymer, although this results in poor on/off ratio of the device. The low mobilities may be attributed to the presence of solubilizing alkyl chains normal to the long axis of the polymer which prevent the self assembly of the polymer into an ordered π-stacked configuration.

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


  1. 1.

    T. A. Skotheim, R. L. E. Elsenbaumer, J. R. Reynolds editors, Handbook of conducting polymers, second edition revised and expanded, 1997, p. 1112.

    Google Scholar 

  2. 2.

    J. Cornil, D. Beljonne, J. P. Calbert, J. L. Brédas, Adv. Mater., 13, 1053 (2001).

    CAS  Article  Google Scholar 

  3. 3.

    H. Sirringhaus, P. J. Brown, R. H. Friend, M. M. Nielsen, K. Bechgaard, B. M. W. Langeveld-Voss, A. J. H. Spiering, R. A. J. Janssen, E.W. Meijer, P. Herwig, D. M. de Leeuw, Nature, 401, 685 (1999).

    CAS  Article  Google Scholar 

  4. 4.

    H. Sirringhaus, N. Tessler, R. H. Friend, Science, 280, 1741 (1998).

    CAS  Article  Google Scholar 

  5. 5.

    H. Sirringhaus, R. J. Wilson, R. H. Friend, M. Inbasekaran, W. Wu, E. P. Woo, M. Grell, D. D. C. Bradley, Appl. Phys. Lett., 77, 406 (2000).

    CAS  Article  Google Scholar 

  6. 6.

    G. Zotti, G. Schiavon, A. Berlin, G. Fontana, G. Pagani, Macromolecules, 27, 1938 (1994).

    CAS  Article  Google Scholar 

  7. 7.

    a) P. Coppo, D. C. Cupertino, S. G. Yeates, M. L. Turner, J. Mater. Chem., 12, 2597 (2002). b) P. Coppo, D. C., Cupertino, S. G., Yeates, M. L., Turner, Macromolecules, 36, 2705 (2003).

    CAS  Article  Google Scholar 

  8. 8.

    P. Coppo, M. L. Turner, unpublished results.

  9. 9.

    R. D. McCullough, Adv. Mater., 10, 93 (1998).

    CAS  Article  Google Scholar 

  10. 10.

    M. Inbasekaran, W. Wu, E. P. Woo, US patent, 5,777,070, 1998, 9pp.

  11. 11.

    J. Veres, S. D. Ogier, S.W. Leeming, D. C. Cupertino S.M. Khaffaf, Adv. Funct. Mater., 13, 199 (2003).

    CAS  Article  Google Scholar 

Download references

Author information



Corresponding author

Correspondence to Paolo Coppo.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Coppo, P., Turner, M.L., Cupertino, D.C. et al. Investigation of the electronic properties of cyclopentadithiophene polymers and copolymers. MRS Online Proceedings Library 771, 49 (2003).

Download citation