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Miscibility and Luminescence Properties of MEH-PPV/DPO-PPV Polyblends

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Abstract

Poly(2-methoxy-5-(2′-ethyl-hexyloxy)-p-phenylenevinylene) (MEH-PPV) and poly(2,3-diphenyl-5-octyl-p-phenylenevinylene) (DPO-PPV) are basically immiscible as verified by fluorescence spectroscopy and differential scanning calorimetry. This immiscibility results in insufficient energy transfer from DPO-PPV to MEH-PPV in photoluminescence. A vertically segregated structure with DPO-PPV green domains dispersing on the MEH-PPV-rich matrix was observed in a spin-cast film by two-photon excitation microscopy. The turn-on voltages for electroluminescence (EL) of polyblends were lower than those of their individual pristine polymers, while their EL quantum efficiencies were higher. Because both the highest occupied molecular orbital and the lowest unoccupied molecular orbital levels of MEH-PPV are higher than those of the DPO-PPV, the energy gap of the vertical heterojunction (1.98 eV) in polyblends is lower than that of the pristine MEH-PPV (2.14 eV), which is believed to result in the improved EL properties.

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References

  1. D. Braun and A. Heeger, J. Appl. Phys. Lett., 58, 1982 (1991).

    Article  CAS  Google Scholar 

  2. I. D. Parker, J. Appl. Phys., 75, 1656 (1994).

    Article  CAS  Google Scholar 

  3. G. Padmanaban and S. Ramakrishnan, J. Am. Chem. Soc., 122, 2244 (2000).

    Article  CAS  Google Scholar 

  4. Y.-L. Fan and K.-F. Lin, J. Polym. Sci. Part A: Polym. Chem., 43, 2520 (2005).

    Article  CAS  Google Scholar 

  5. T. W. Lee and O. O. Park, Adv. Mater., 12, 801 (2000).

    Article  CAS  Google Scholar 

  6. T. W. Lee, O. O. Park, L. M. Do and T. Zyung, Synth. Met., 117, 249 (2001).

    Article  CAS  Google Scholar 

  7. H.-L. Chou, K.-F. Lin, Y.-L. Fan and D.-C. Wang, J. Polym. Sci. Part B: Polym. Phys., 43, 1705 (2005).

    Article  CAS  Google Scholar 

  8. B.-H. Sohn, K. Kim, D. S. Doi, Y. K. Kim, S. C. Jeoung and J.-L. Jin, Macromolecules, 35, 2876 (2002).

    Article  CAS  Google Scholar 

  9. L. S. Park, Y. S. Han, S. D. Kim and D. U. Kim, Synth. Met., 117, 237 (2001).

    Article  CAS  Google Scholar 

  10. Y. Xiao, W.-L. Yu, Z. Chen, W. Huang and A. J. Heeger, Synth. Met., 106 165 (1999).

    Article  CAS  Google Scholar 

  11. S. M. Chang, P. K. Su, G. J. Lin and T. J. Wang, Synth. Met., 137, 1025 (2003).

    Article  CAS  Google Scholar 

  12. C.-C. Chiu, K.-F. Lin and H.-L. Chou, J. Polym. Sci. Part A: Polym. Chem., 41, 2180 (2003).

    Article  CAS  Google Scholar 

  13. H. G. Gilch and W. L. Wheelwright, J. Polym. Sci. Part A: Polym. Chem., 4, 1337 (1966).

    Article  CAS  Google Scholar 

  14. H.-L. Chow, K.-F. Lin, Y.-K. Han and D.-C. Wang, Bull. Coll. Eng. NTU, 89, 111 (2003).

    Google Scholar 

  15. Y. Li, Y. Cao, J. Gao, D. Wang, G. Yu and A. J. Heeger, Synth. Met. 99, 243 (1999).

    Article  CAS  Google Scholar 

  16. K. M. Gaab, and C. J. Bardeen, J. Phys. Chem. B, 108, 4619 (2004).

    Article  CAS  Google Scholar 

  17. T. Q. Nguyen, R. Y. Yee and B. J. Schwartz, J. Photochem. Photobiol. A, 144, 21 (2001).

    Article  CAS  Google Scholar 

  18. T. Huser and M. Yan, Synth. Met., 116, 333 (2001).

    Article  CAS  Google Scholar 

  19. T. Q. Nguyen, B. J. Schwartz, R. D. Schaller, J. C. Johnson, L. F. Lee, L. H. Haber and R. J. Saykally, J. Phys. Chem. B, 105, 5153 (2001).

    Article  CAS  Google Scholar 

  20. H.-L. Cheng and K.-F. Lin, Synth. Met., 122, 387 (2001).

    Article  CAS  Google Scholar 

  21. H.-L. Cheng and K.-F. Lin, J. Mater. Chem., 12, 2270 (2002).

    Article  CAS  Google Scholar 

  22. J. R. Lakowicz, Principles of Fluorescence Spectroscopy. Plenum, New York, 1983, Chap. 3.

    Google Scholar 

  23. Y. Liu, M. S. Liu, X. C. Li and A. K. Y. Jen, Chem. Mater., 10, 3301 (1998).

    Article  CAS  Google Scholar 

  24. T. W. Lee and O. O. Park, Adv. Mater., 12, 801 (2000).

    Article  CAS  Google Scholar 

  25. S.-H. Chen, A.-C. Su, Y.-F. Huang, C.-H. Su, G.-Y. Peng and S.-A. Chen, Macromolecules, 35, 4229 (2002).

    Article  CAS  Google Scholar 

  26. D. W. Van Krevelen, Properties of Polymers: Their Correlation with Chemical Structure: Their Numerical Estimation and Prediction from Additive Group Contributions. Elsevier, Amsterdam, 1990.

    Google Scholar 

  27. J.-S. Kim, P. K. H. Ho, C. E. Murphy and R. H. Friend, Macromolecules, 37, 2861 (2004).

    Article  CAS  Google Scholar 

  28. A. C. Morteani, A. S. Dhoot, J.-S. Kim, C. Silva, N. C. Greenham, C. Murphy, E. Moons, S. Cina, J. H. Burroughes and R. H. Friend, Adv. Mater., 15, 1708 (2003).

    Article  CAS  Google Scholar 

  29. R. Jakubiak, C. J. Collison, W. C. Wan, L. J. Rothberg and B. R. Hsieh, J. Phys. Chem. A 103, 2394 (1999).

    Article  CAS  Google Scholar 

  30. M. Lor, J. Thielemans, L. Viaene, M. Cotlet, J. Hofkens, T, Weil, C. Hampel, K. Müllen, J. W. Verhoeven, M. Van der Auweraer and F. C. De Schryver, J. Am. Chem. Soc., 124, 9918 (2002).

    Article  CAS  Google Scholar 

  31. I. D. Parker, J. Appl. Phys., 75, 1656 (1994).

    Article  CAS  Google Scholar 

  32. A. C. Morteani, R. H. Fiend and C. Silva, Chem. Phys. Lett., 391, 81 (2004).

    Article  CAS  Google Scholar 

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Authors and Affiliations

  1. Department of Material Science and Engineering, National Taiwan University, Taipei, 10617, Taiwan, Republic of China

    Hsuan-Liang Chou & King-Fu Lin

  2. Ritekdisplay Corporation, No. 12, Kuanfu N. Rd., Hsin Chu Industrial Park, 30316, Taiwan, Republic of China

    Ding-Chang Wang

Authors
  1. Hsuan-Liang Chou
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  2. King-Fu Lin
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  3. Ding-Chang Wang
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Correspondence to King-Fu Lin.

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Chou, HL., Lin, KF. & Wang, DC. Miscibility and Luminescence Properties of MEH-PPV/DPO-PPV Polyblends. J Polym Res 13, 79–84 (2006). https://doi.org/10.1007/s10965-005-9017-7

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  • DOI: https://doi.org/10.1007/s10965-005-9017-7

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