Inorganic/Organic Hybrid Solar Cells Using Photo-Electrochemically Deposited Electroactive Polymers as Hole Transporting Materials

  • Dillip Panda, Intelligent Polymer Research Institute, University of Wollongong , Newsouthwales, Australia, Australia
  • Dr Attila Mozer, Intelligent Polymer Research Institute, University of Wollongong , Newsouthwales, Australia, Australia
  • Dr George Tsekouras, Intelligent Polymer Research Institute, University of Wollongong , Newsouthwales, Australia, Australia
  • Dr Pawel Wagner, Intelligent Polymer Research Institute, University of Wollongong , Newsouthwales, Australia, Australia
  • Prof Gordon Wallace, Intelligent Polymer Research Institute, University of Wollongong , Newsouthwales, Australia, Australia
  • Prof David Officer, Intelligent Polymer Research Institute, University of Wollongong , Newsouthwales, Australia, Australia

    • Inorganic/organic hybrid solar cells fabricated by a photo-electrochemical deposition method of PEDOT (poly-3,4-ethylenedioxythiophene) as hole transporting material (HTM), a commercially available ruthenium complex Z907 as photo-sensitiser and a nanostructured TiO2 as photo anode material will be presented. The dye-sensitized films containing various deposits of PEDOT were characterised using UV-Vis spectroscopy, and the current voltage curves of the corresponding solar cells were measured under 100 mW cm-2 air mass (AM 1.5) calibrated white light illumination. The polymer growth is controlled by varying the light intensity, wavelength and applied potential. Finally, a range of imaging and spectro-electrochemical mapping techniques are employed including AFM, SEM, confocal Raman spectroscopy and scanning electrochemical microscopy to investigate the correlation between solar cell performance and HTM morphology, pore filling and doping level.