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Synthesis and Properties of Novel Triphenylamine Derivatives Containing Bipyridine Units

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Abstract:

Compounds (S1-S3) containing triphenylamine donors, bipyridine acceptors and olefinic linkers were synthesized and characterized. Three compounds have excellent solubility in common solvents and tend to form solid films. The peaks of emission of S1-S3 are in the range of 476nm-504nm on solid films, corresponding to blue light emission. S1-S3 have fluorescence lifetime exceeding 2.05ns and absolute fluorescence quantum yield above 22% in dilute chloroform solutions. Three compounds possess glass-transition temperatures superior to 63°C. The HOMO levels are in the range of -5.17eV - -5.13eV to facilitate hole injection. The properties of S1-S3 indicate that these compounds are promising candidates as hole-transporting materials or blue light-emitting materials in organic light-emitting devices.

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Periodical:

Advanced Materials Research (Volumes 554-556)

Pages:

832-835

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.554-556.832

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Online since:

July 2012

Authors:

Hai Jun Lv, Xiang Gao Li, Shi Rong Wang, Wen Zheng Gao

Keywords:

Bipyridine, Blue Light-Emitting Materials, Hole-Transporting Materials, Triphenylamine

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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