Journal of Materials Science

, Volume 41, Issue 18, pp 6103–6106 | Cite as

Synthesis, characteristics of blue electroluminescent copolymers containing fluorene unit and aliphatic non-conjugated segments

  • Zhuliang Yuan
  • Zongqiang Yu
  • Songting TanEmail author

Polyfluorenes (PFs) have been intensively studied as the blue light-emitting materials due to their high photoluminescence (PL) quantum yields in the solid-state, thermal stability, suitable solubility, and good charge transport properties [1, 2, 3, 4, 5], and various fluorene-based copolymers have been synthesized for their benefits such as having the nature of two monomers, tuning the optical properties and improving device performance. Recently, Sung-Ho Jin et al. [6] reported a new poly(9,9-dialkylfluorene-2,7-vinylene) (PFV), and its copolymers with various ratios of MEHPV units, efficiently tuning HOMO and LUMO binding energy levels. However, these PFV fully conjugated homopolymer or copolymers all emitted greenish-blue or green light due to the introduction of the double bond in the main chain, which increased the π–π* conjugated length. On the other hand, the application of PFs in light emitting diodes has been hampered by the appearance of green electroluminescence (ca....


Bromomethyl Quinine Sulfate Phosphonium Salt Triphenylphosphonium Polyfluorene 



This work was supported by the National Nature Science Foundation of China (50473045).


  1. 1.
    Chen X, Liao JL, Liang Y, Ahmed MO, Tseng HE, Chen SA (2003) J Am Chem Soc 125:636CrossRefGoogle Scholar
  2. 2.
    Su HJ, Wu FI, Tseng YH, Shu CF (2005) Adv Funct Mater 15:1209CrossRefGoogle Scholar
  3. 3.
    Scherf U, List EJW (2002) Adv Mater 14:477CrossRefGoogle Scholar
  4. 4.
    Leclerc M (2001) J Polym Sci Part A Polym Chem 39:2867CrossRefGoogle Scholar
  5. 5.
    Neher D (2001) Macromol Rapid Commun 22:1365CrossRefGoogle Scholar
  6. 6.
    Jin SH, Kang SY, Kim MY, Chan YU, Kim JY, Lee K, Gal YS (2003) Macromolecules 36:3841CrossRefGoogle Scholar
  7. 7.
    Sims M, Bradley DDC, Ariu M, Koeberg M, Asimakis A, Grell M, Lidzey DG (2004) Adv Funct Mater 14:765CrossRefGoogle Scholar
  8. 8.
    Romaner L, Pogantsch A, Freitas PS, Scherf U, Gaal M, Zojer E, List JW (2003) Adv Funct Mater 13:597CrossRefGoogle Scholar
  9. 9.
    Guang SH, Lixiang Y, Faming X, Paras NP (2001) Chem Mater 13:1896CrossRefGoogle Scholar
  10. 10.
    Jin S, Kim M, Koo D, Kim Y (2004) Chem Mater 16:3299CrossRefGoogle Scholar
  11. 11.
    Zheng M, Sarker AM, Gürel EE, Lahti PM, Karasz FE (2000) Macromolecules 33:7426CrossRefGoogle Scholar
  12. 12.
    Demas JN, Crosby GA (1971) J Phys Chem 75:991CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  1. 1.College of Chemistry and Institute of Polymer MaterialsXiangtan UniversityXiangtanP.R. China

Personalised recommendations