A glass-forming conjugated main-chain liquid crystal polymer for polarized electroluminescence applications

Authors

  • Dr. Martin Grell,

    1. Department of Physics and Centre for Molecular Materials, The University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH (UK)
    Search for more papers by this author
  • Prof. Donal D. C. Bradley,

    Corresponding author
    1. Department of Physics and Centre for Molecular Materials, The University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH (UK)
    • Department of Physics and Centre for Molecular Materials, The University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH (UK)
    Search for more papers by this author
  • Dr. Mike Inbasekaran,

    1. Central & New Businesses R & D, The Dow Chemical Company, Midland, M148674 (USA)
    Search for more papers by this author
  • Dr. E. P. Woo

    1. Central & New Businesses R & D, The Dow Chemical Company, Midland, M148674 (USA)
    Search for more papers by this author

  • The Sheffield group thanks the Deutsche Forschungsgemeinschaft for a DFG fellowship (M. Grell), the New Energy and Industrial Technology Development Organisation (NEDO) of Japan for partial support through the International Collaborative Project “Organic Electroluminescence”, and the Engineering and Physical Sciences Research Council for support under a Materials Commission ROPA award (reference: GR/K62835). We gratefully acknowledge useful discussions with Dr. Xiao Long, Prof. David Dunmur, Louise Brandon, Prof. Peter Raynes and Dr. Andrew Hudson.

Abstract

Electroluminescence and liquid crystallinity: these are the properties of a new spacerless conjugated main-chain liquid-crystalline (LC) polymer reported here. The thermal and spectroscopic properties of the new glass-forming poly-fluorene with octyl side chains (see Figure) are described, showing that polarized electroluminescent multilayer devices should be possible.

original image

Ancillary