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Polymer Electrodes for Flexible Organic Light-Emitting Devices

  • Woohong Kim (a1), Leonidas C. Palilis (a1), Antti J. Mäkinen (a1), Heungsoo Kim (a1), Manabu Uchida (a2) and Zakya H. Kafafi (a1)...

Abstract

We report a high luminance and low operating voltage molecular organic light-emitting diode (MOLED) using a conducting polymer hole-injecting electrode (anode) on a plastic substrate. A dramatic improvement in the rectification ratio is observed upon the insertion of a buffer layer between the conducting polymer anode and the organic hole-transporting layer (HTL). Micro-shorts leading to a leakage current caused by the non-uniformity of the polymer film are greatly reduced. Atomic force microscope (AFM) images show a much smoother surface of the polymer anode/buffer layer relative to that of the bare polymer film. A slight increase (0.3eV ± 0.2eV) in the work function of the polymer anode upon the addition of the buffer layer is also measured. A simple method of patterning the conducting polymer electrode on various substrates including plastics is also reported. This approach conveniently provides finely patterned conducting polymer films with νm resolution while maintaining their intrinsic electrical and optical properties such as the surface sheet resistance and the optical transmittance.

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1. Takaki, S., Matsumoto, K., and Suzuki, K., Appl. Surf. Sci. 33/34, 919925 (1988).
2. Rauf, I. A., J. Appl. Phys. 79, 40574065 (1996).
3. Ishibashi, S., Higuchi, Y., Ota, Y., Nakamura, K., J. Vac. Sci. Technol. A 8, 14031406 (1990).
4. Shigesato, Y., Takaki, S., and Haranoh, T., J. Appl. Phys. 71, 33563364 (1992).
5. Joshi, R. N., Singh, V. P., and McClure, J. C., Thin Solid Films 257, 3235 (1995).
6. Kim, H., Piqué, A., Horwitz, J. S., Mattoussi, H., Murata, H., Kafafi, Z. H. and Chrisey, D. B., Appl. Phys. Lett. 74, 34443446 (1999).
7. Kim, H., Gilmore, C. M., Piqué, A., Horwitz, J. S., Mattoussi, H., Murata, H., Kafafi, Z. H. and Chrisey, D. B., J. Appl. Phys. 86, 64516461 (1999).
8. Paetzold, R., Heuser, K., Henseler, D., Roeger, S., Wittmann, G., and Winnacker, A., Appl. Phys. Lett, 82 (19), 3342, (2003).
9. Jonas, F., Krafft, W., Muys, B., Macromol. Symp., 100, 169, (1995).
10. Jonas, F. and Morrison, J. T., Synt. Met., 85, 1397, (1995).
11. Ghosh, S., Rasmusson, J., Inganäs, O., Adv. Mater., 10, 1097, (1998).
12. Leshin, A., Kiebooms, R., Menon, R., Heeger, A.J., Synth. Met, 90, 61, (1997).
13. Kiebooms, R., Aleshin, A., Hutchison, K., Wudl, F., Heeger, A. J., Synth. Met.,101, 436, (1999).
14. Kim, H. D., Chung, H. R., Cheong, M. K., and Chang, T. W., USP 6,248,818.
15. Granlund, T., Pettersson, L.A.A., and Inganäs, O., J. Appl. Phys. 89, 5897, (2001).
16. Ghosh, S. and Inganäs, O., Synth. Met., 121(1-3), 1321, (2001).
17. Jonas, F., Karbach, A., Muys, B., Thillo, E., Wehrmann, R., Elschner, A., and Dujardin, R., USP 6083635.
18. Kim, J. Y., Jung, J. H., Lee, D. E., and Joo, J., Synth. Met., 126 (2-3), 311, (2002).
19. Buvat, P., Hourquebie, P., Macromolecules, 30, 2685, (1997).
20. Kim, W. H., Mäkinen, A. J., Nikolov, N., Shashidhar, R., Kim, H., and Kafafi, Z. H., Appl. Phys. Lett., 80, 3844, (2002).
21. Kim, W. H., Mäkinen, A. J., Nikolov, N., Shashidhar, R., Kim, H., and Kafafi, Z. H., Proc. SPIE, 4466, 85, (2002).
22. Kim, W. H., Palilis, L. C., Uchida, M., and Kafafi, Z. H., Chemistry of Materials (submitted).
23. Murata, H., Malliaras, G. G., Uchida, M., Shen, Y., and Kafafi, Z. H., Chem. Phys. Lett. 339, 161, (2001).
24. Palilis, L. C., Uchida, M., and Kafafi, Z. H., IEEE J. Sele. Top. in Quan. Elec, 10 (1), 79, (2004).
25. Murata, H., Kafafi, Z. H., and Uchida, M., Appl. Phys. Lett. 80, 189, (2002).
26. Palilis, L. C., Murata, H., Mäkinen, A. J., Uchida, M., and Kafafi, Z. H., Proc. Symp. On Organic and Polymeric Materials and Devices-Optical, Electrical and Optoelectronic Properties, Jabbour, G. E., Carter, S.A., Kido, J., Lee, S-T., and Sariciftci, N.S., Editors, MRS Proc. 725, 19 (2002).
27. Palilis, L. C., Mäkinen, A. J., Uchida, M., and Kafafi, Z. H., Appl. Phys. Lett. 82, 2209, (2003).
28. Palilis, L. C., Mäkinen, A. J., Murata, H., Uchida, M., and Kafafi, Z. H., In Organic Light Emitting Materials and Devices VI, Zakya H. Kafafi and Homer Antoniadis, Editors, Proceedings of SPIE, 4800, 256, (2003).
29. Palilis, L. C.; Mäkinen, A. J.; Murata, H; Uchida, M; Kafafi, Z. H., Org. Electron., 4, 113, (2003)
30. Duineveld, M. de Kik, Buechel, M., Sempel, A. H., Mutasaers, K. A. H., Weijer, P., Camps, I. G. J., Biggelaar, T. J. M., Rubingh, J. J. M., and Kaskal, E. I., In Organic Light Emitting Materials and Devices V, Zakya H. Kafafi Editor, Proceedings of SPIE 4464, 59, (2002).
31. , Pardo, Jabbour, G. E., and Peyhgamgrian, N., Adv. Mater. 12, 1249, (2000).
32. Birnstock, J., Blässing, J., Hunze, A., Scheffel, M., Stöβel, M., Heuser, K., Wärle, J., Wittmann, G., and Winnacker, A., In Organic Light Emitting Materials and Devices V, Zakya H. Kafafi Editor, Proceedings of SPIE 4464, 68, (2002).
33. Kim, W. H., Kushto, G. P., Kim, H., and Kafafi, Z. H., J Polym Sci Part B: Polym Phys, 41, 2471, (2003).
34. Recommended optimum baking condition is 130°C for 2min. Personal communication with Agfa.
35. Tamao, K., Uchida, M., Izumizawa, T., Furukawa, K., and Yamaguchi, S., J. Am. Chem. Soc. 118, 11974. (1996).
36. Yamaguchi, S., Endo, T., Uchida, M., Izumizawa, T., Furukawa, K., and Tamao, K., Chem. Eur. J. 6, 1683 (2000).

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Polymer Electrodes for Flexible Organic Light-Emitting Devices

  • Woohong Kim (a1), Leonidas C. Palilis (a1), Antti J. Mäkinen (a1), Heungsoo Kim (a1), Manabu Uchida (a2) and Zakya H. Kafafi (a1)...

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