CRCU

Chemical Research in Chinese Universities ›› 2002, Vol. 18 ›› Issue (1): 88-92.

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The Electroluminescence Characterization of Poly(p-phenyleneethynylene)——The π-conjugated Backbone Interrupted by a Butylene Unit

NIU Jun-feng, YANG Mu-jie   

  1. Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
  • Received:2000-08-14 Online:2002-01-24 Published:2011-08-04
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.29974025) and Zhejiang Provincial Natural Science Foundation of China(No.599100);State Key Laboratory of Silicon Materials, Laboratory of Organic Solids, Institute of Chemistry, Chinese Acadeiny of Sciences.

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Abstract: π-Conjugated poly(p-phenyleneethynylene) with the interruption of the conjugation by a butylene unit was synthesized. Its absorption, PL and EL spectra were investigated respectively. The spectral peaks shifted to the higher energy side with the interruption of the conjugation lengths. The model compound was synthesized, by which the results were proved. The thermal characteristics of the polymer was determined by DSC and TGA, indicating that the polymer has a good thermal stability. The electroluminescence(EL) in the green region of the spectrum with a maximum at 500 nm was observed from the polymer films sandwiched between indium-tin-oxide and an Al electrode.

Key words: Electroluminescence, Poly(2,5-dialkoxy-p-phenyleneethynylene), Interruption