Light-emitting conjugated molecule containing 1,3,4-oxadiazole, carbazole and naphthalene units
作者： Liheng Feng , Zhaobin Chen
DOI: 10.1016/J.SAA.2005.04.036
关键词: Electron acceptor 、 Fluorescence 、 Photochemistry 、 Carbazole 、 Chemistry 、 Electron donor 、 Fullerene 、 Oxadiazole 、 Chromophore 、 Photoluminescence
摘要: Abstract A novel π-conjugated small molecule VNCO, 2,5-bis{3′-[3″-vinyl-9″-(α-naphthyl)carbazolyl]phenyl}-1,3,4-oxadiazole, containing hole-transporting carbazole moieties, electron-injecting 1,3,4-oxadiazole moieties and chromophore naphthalene was designed synthesized by Wittig reaction of 2,5-bis(3-tolylene-triphenylphosphonium bromide)-1,3,4-oxadiazole 3-formyl-9-(α-naphthyl)carbazole. The UV–vis absorption, fluorescence excitation emission spectra have been obtained in solution for VNCO. photoluminescence (PL) VNCO were examined different solvents the luminescence quantum yield 0.746 chloroform. It emitted blue blue–green light, with band gap 3.30 eV estimated from onset absorption. In addition, light-emitting can be quenched both electron donor (N,N-dimethylaniline) acceptor (dimethylterephalate). Furthermore, molecular interactions fullerene (C60) or carbon nanotubes (CNTs) also carefully investigated.
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