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Synfacts 2008(6): 0593-0593  
DOI: 10.1055/s-2008-1067057
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart · New York

Excited-State Proton Cycle Produces Blue Luminescence

Contributor(s): Timothy M. Swager, Brett VanVeller
S. Park, J. Seo, S. H. Kim, S. Y. Park*
Seoul National University and Dongwoo Fine-Chem Co., Ltd., Pyungtaek-Si, Korea
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Publikationsdatum:
21. Mai 2008 (online)

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Significance

Excited-State Intramolecular Proton Transfer (ESIPT) results in large Stokes shifts, preventing self-absorption of the higher energy portion of the emission spectrum and resulting in greater color purity and emission quantum efficiency. The authors utilize this phenomenon to achieve bright blue electroluminescence (EL) through covalently linking ESIPT molecules to charge-carrier moieties in a one-pot procedure.