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Synthesis and Characterization of 2,7-Linked Carbazole Oligomers

Authors

  • Ruiping Qin,

    1. College of Physics & Information Engineering, Key Laboratory of Photovoltaic Materials of Henan Province, Henan Normal University, Xinxiang 453007, China
    Current affiliation:
    1. R.Q. and Z.B. contributed equally to this work.
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  • Zhishan Bo

    Corresponding author
    1. College of Chemistry, Beijing Normal University, Beijing 100875, China
    Current affiliation:
    1. R.Q. and Z.B. contributed equally to this work.
    • College of Chemistry, Beijing Normal University, Beijing 100875, China.
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Abstract

A set of monodisperse 2,7-linked carbazole oligomers (3-mer, 5-mer, 7-mer, and 9-mer) was synthesized, and their photophysical, electrochemical, and thermal properties were investigated. In solutions, these oligomers exhibited bright blue emission with almost quantitative fluorescence quantum yield. The emission spectra of these oligomers in films are quite different. 3-Mer and 5-mer exhibited featureless emission spectra, whereas 7-mer and 9-mer showed well-resolved emission spectra.

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