Noncrystalline blue-emitting 9,10-diphenylanthracene end-capped with triphenylamine-substituted fluorene

► Novel nonplanar oligomers containing DPA core were facilely prepared. ► Possessing good thermal and morphological stabilities. ► Maintaining the high fluorescence quantum yield and wide energy gap of the DPA core. ► Excellent hole-injection and -transporting ability of the resulting materials. Two...

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Bibliographic Details
Published in:Journal of photochemistry and photobiology. A, Chemistry. Chemistry., 2012, Vol.227 (1), p.59-64
Main Authors: Zhang, Yujian, Jin, Yanxian, Bai, Ru, Yu, Zhenwei, Hu, Bin, Ouyang, Mi, Sun, Jingwei, Yu, Chunhui, Liu, Junlei, Zhang, Cheng
Format: Article
Language:English
Subjects:
9,10-Diphenylanthracene
Blue-emitting material
Hole-injection
Thermal stability
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Summary:► Novel nonplanar oligomers containing DPA core were facilely prepared. ► Possessing good thermal and morphological stabilities. ► Maintaining the high fluorescence quantum yield and wide energy gap of the DPA core. ► Excellent hole-injection and -transporting ability of the resulting materials. Two blue-emitting oligomers, namely FDPA1 and FDPA2 containing 9,10-diphenylanthracene core end-capped with triphenylamine-substituted fluorene has been synthesized and characterized. The spiro-configuration end-capping groups imparts two compounds with pronounced morphological stability ( T g > 185 °C, T d > 420 °C) and excellent hole injection ability ( E HOMO > −5.27 eV) with the advantageous optical characteristics of corresponding core. Scanning electron microscope (SEM) and X-ray diffraction (XRD) reveal that the two oligomers form excellent amorphous films and possess good morphological stability after annealing.
ISSN:1010-6030
1873-2666
DOI:10.1016/j.jphotochem.2011.11.003