Bright White-Light Emission from a Single Organic Compound in the Solid State

Authors

  • Dr. Qing-Yuan Yang,

    1. Lehn Institute of Functional Materials, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275 (China)
    2. Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, 8 allée Gaspard Monge, Strasbourg 67000 (France)
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  • Prof. Dr. Jean-Marie Lehn

    Corresponding author
    1. Lehn Institute of Functional Materials, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275 (China)
    2. Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, 8 allée Gaspard Monge, Strasbourg 67000 (France)
    • Lehn Institute of Functional Materials, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275 (China)===

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  • We thank Chien-Wei Hsu for time-resolved fluorescence measurements, Corinne Bailly for the crystal-structure determination, and Dr. Laura Maggini for the SEM imaging. We also thank Prof. Bernard Valeur for helpful comments. Q.-Y.Y. thanks the China Postdoctoral Science Foundation (2012M510203, 2013T60819), the Leading Talent Project in Guangdong Province (31000-3210003), and the 973 Program of China (2012CB821701) for financial support. This research was supported in part by the ANR-10-BLAN-717.

Abstract

White-light-emitting materials and devices have attracted enormous interest because of their great potential for various lighting applications. We herein describe the light-emitting properties of a series of new difunctional organic molecules of remarkably simple structure consisting of two terminal 4-pyridone push–pull subunits separated by a polymethylene chain. They were found to emit almost “pure” white light as a single organic compound in the solid state, as well as when incorporated in a polymer film. To the best of our knowledge, they are the simplest white-light-emitting organic molecules reported to date.

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