Transition metal ferrocenyl dithiocarbamates functionalized dye-sensitized solar cells with hydroxy as an anchoring group

Reena Yadav, Yogesh Waghadkar, Gabriele Kociok-Kohn, Abhinav Kumar, Sunit B. Rane, Ratna Chauhan

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Three new transition-metal dithiocarbamates involving ferrocene (Fc), namely [Co(FcCH2EtOHdtc)3] (Co), [M(FcCH2EtOHdtc)2] M = Ni (Ni), Cu (Cu) (EtOHdtc = N-ethanol dithiocarbamate), have been synthesized and characterized by microanalyses, FTIR, 1H and 13C NMR spectroscopies and single crystal X-ray diffraction technique. The peak broadening in the 1H spectrum of the copper complex indicates the paramagnetic behavior of this compound. The observed single quasi-reversible cyclic voltammograms for the complexes indicate the stabilization of a metal center (except copper) other than Fe in their characteristic oxidation state. These complexes have been used as photo-sensitizer in dye-sensitized solar cells which indicates that Co displays the best photosensitization property with an overall conversion efficiency of 3.25 ± 0.04%. The low cell efficiency of Ni and Cu complexes may be due to slow regeneration of the dye by iodine/iodide redox couple followed by charge injection into TiO2.

Original languageEnglish
Pages (from-to)176-183
Number of pages8
JournalOptical Materials
Volume62
DOIs
Publication statusPublished - 1 Dec 2016

Keywords

  • Dithiocarbamate
  • DSSC
  • Ferrocene
  • TiO

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