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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/121/01/0075-0082

    • Keywords

       

      Dye sensitized solar cells; phthalocyanine; extended 𝜋-conjugation; unsymmetrical zinc phthalocyanine and redox electrolyte.

    • Abstract

       

      We have designed and synthesized a new unsymmetrical zinc phthalocyanine based on `push-pull’ and extended 𝜋-conjugation concept, PCH008. The new sensitizer was fully characterized by CHN anlysis, UV-Vis., fluorescence spectroscopies and cyclic voltammetry. The new sensitizer which upon anchoring onto nanocrystalline TiO2 film exhibit a short circuit current of 5.63 mA cm-2, open circuit potential of 557.0 mV and a fill factor of 0.75 corresponding to an overall conversion efficiency of 2.35% under standard global air mass (AM) 1.5 solar conditions and compared its performance with literature reported phthalocyanine dyes.

    • Author Affiliations

       

      L Giribabu1 Ch Vijay Kumar1 P Yella Reddy1 Jun-Ho Yum2 M Grätzel2 Md K Nazeeruddin2

      1. Nanomaterials Laboratory, Inorganic and Physical Chemistry Division, Indian Institute of Chemical Technology, Hyderabad 500 007
      2. Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, School of basic Sciences, Swiss Federal Institute of Technology, CH-1015 Lausanne, Switzerland

    • Dates

       
      Published
      January 2009
      Manuscript received
      11 February 2008
      Manuscript revised
      24 October 2008

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