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    • Synthesis, photophysical and electrochemical properties of 2,8-diaryl-dibenzothiophene derivatives for organic electronics

      Pabitra K Nayak Neeraj Agarwal N Periasamy

      Full Papers Volume 122 Issue 2 March 2010 pp 119-124

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/122/02/0119-0124

    • Keywords

       

      Dibenzothiophene; Suzuki-Miyaura coupling; palladium catalyst; phosphorescence; triplet OLED; hole blocker.

    • Abstract

       

      A series of 2,8-𝑝-diaryldibenzothiophene derivatives were synthesized and characterized. These molecules have electron withdrawing or electron donating groups at the para phenyl position, which alters the electronic properties of these derivatives. The quantum yield, fluorescence lifetime, singlet, triplet and EHOMO energy levels of these compounds were determined by fluorescence, phosphorescence and cyclic voltammetry. A plot of Hammett constants of the para substituents vs EHOMO revealed a linear relationship. The usefulness of these molecules in organic light emitting diodes, OLEDs is discussed vis-à-vis the energy levels and properties.

    • Author Affiliations

       

      Pabitra K Nayak1 Neeraj Agarwal1 N Periasamy1

      1. Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005

    • Dates

       
      Published
      March 2010
      Manuscript received
      16 February 2009
      Manuscript revised
      30 June 2009
      Accepted
      19 August 2009

    • Supplementary Material

       

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