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Study of polymer-electrode interfaces in polymer light-emitting diodes using electrical impedance spectroscopy

  • A. van Dijken (a1), I.N. Hulea (a2), H.B. Brom (a2) and K. Brunner (a1)

Abstract

Electrical impedance spectroscopy is used to show that time-dependent charge trapping processes occur in double-layer polymer light-emitting diodes based on poly(ethylene-dioxythiophene):poly(styrene sulfonic acid) (PEDOT:PSS) and poly(p-phenylene vinylene) (PPV). No time-dependent charge trapping processes are observed in single-layer devices based on PPV only. Furthermore, in double-layer devices based on poly(2,7-spirofluorene) (PSF) instead of PPV, such processes are also absent. Traps are probably created in the PPV layer close to the PEDOT:PSS interface due to chemical reactions that occur specifically between PEDOT:PSS and PPV.

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1. MacDonald, J. R., Impedance spectroscopy. Emphasizing solid materials and systems (John Wiley & Sons, 1987).
2. Campbell, I. H., Smith, D. L., Ferraris, J. P.. Appl. Phys. Lett. 66, 3030 (1995).
3. Gomes, H. L., Stallinga, P., Rost, H., Holmes, A. B., Harrison, M. G., Friend, R. H.. Appl. Phys. Lett. 74, 1144 (1999).
4. Meier, M., Karg, S., Riess, W.. J. Appl. Phys. 82, 1961 (1997).
5. Cao, Y., Yu, G., Zhang, C., Menon, R., Heeger, A. J.. Synth. Metals 87, 171 (1997).
6. Spreitzer, H., Becker, H., Kluge, E., Kreuder, W., Schenk, H., Demandt, R., Schoo, H.. Adv. Mater. 10, 1340 (1998).
7. Becker, H., Spreitzer, H., Kreuder, W., Kluge, E., Schenk, H., Parker, I. D., Cao, Y.. Adv. Mater. 12, 42 (2000).
8. Becker, H., Büsing, A., Falcou, A., Heun, S., Kluge, E., Parham, A., Stöβel, P., Spreitzer, H., Treacher, K., Vestweber, H.. In “Developments in polymer materials for electroluminescence”; SPIE, San Diego, 2001, 4464.
9. van der Scheer, R. F. J., Master's Thesis (Applied Physics, Technical University Eindhoven, 2002).
10. Lampert, M. A., Mark, P., Current injection in solids (Academic Press, 1970).
11. Blom, P. W. M., de Jong, M. J. M.. IEEE J. Sel. Top. Quantum Electron. 4, 105 (1998).
12. Blom, P. W. M., Vissenberg, M. C. J. M.. Mater. Sci. Eng. R 27, 53 (2000).
13. Nguyen, P. H., Scheinert, S., Berleb, S., Brütting, W., Paasch, G.. Org. Electron. 2, 105 (2001).

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Study of polymer-electrode interfaces in polymer light-emitting diodes using electrical impedance spectroscopy

  • A. van Dijken (a1), I.N. Hulea (a2), H.B. Brom (a2) and K. Brunner (a1)

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