Site Isolation in Phosphorescent Bichromophoric Block Copolymers Designed for White Electroluminescence

Authors

  • Daniel A. Poulsen,

    1. Materials Science Division, Lawrence Berkeley National Laboratory University of California Berkeley, CA 94720-1460 (USA)
    2. College of Chemistry, University of California Berkeley, CA 94720-1460 (USA)
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  • Bumjoon J. Kim,

    1. Materials Science Division, Lawrence Berkeley National Laboratory University of California Berkeley, CA 94720-1460 (USA)
    2. College of Chemistry, University of California Berkeley, CA 94720-1460 (USA)
    3. Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology (KAIST) Daejeon, 305-701, Korea
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  • Biwu Ma,

    1. Materials Science Division, Lawrence Berkeley National Laboratory University of California Berkeley, CA 94720-1460 (USA)
    2. College of Chemistry, University of California Berkeley, CA 94720-1460 (USA)
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  • C. Sebastian Zonte,

    1. Materials Science Division, Lawrence Berkeley National Laboratory University of California Berkeley, CA 94720-1460 (USA)
    2. College of Chemistry, University of California Berkeley, CA 94720-1460 (USA)
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  • Jean M. J. Fréchet

    Corresponding author
    1. Materials Science Division, Lawrence Berkeley National Laboratory University of California Berkeley, CA 94720-1460 (USA)
    2. College of Chemistry, University of California Berkeley, CA 94720-1460 (USA)
    • Materials Science Division, Lawrence Berkeley National Laboratory University of California Berkeley, CA 94720-1460 (USA).
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Abstract

original image

Organization of phosphorescent domains in seld-assembled block copolymers is demonstrated to yield dual emission for white electroluminescence. Our block- copolymer approach minimizes energy transfer between two colored species by site isolation through morphology control, allowing higher loading concentration of red emitters with improved device performance.

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