Synthesis And Investigation Of Novel Ferrocene Functionalized Sensitizer For Dye-sensitized Solar Cells

With the growing demand of energy, exploitation of renewable energy has become themost difficult problem. As a renewable energy alternative, the solar energy can be convertedto electricity directly, dye-sensitized solar cell(DSC) is one kind of promising solar cells.As the key component of the DSCs, electrolyte takes responsible of charge transfer anddye regeneration, which affect photocurrent and photovoltage seriously. Besides I-/I3-, Fc/Fc+is another promising redox couple. However, the photovoltaic performances of DSCs basedon Fc/Fc+ are not as good as those of I-/I3- due to the fast charge recombination between Fcand electron in the conduction band of Ti O2. Thus, the photovoltaic performance of DSCsbased on Fc/Fc+ still has much room to enhance after resolve the unfavorable chargerecombination.Upon above consideration, a new redox couple functionalized sensitizer has beensynthesized and applied in DSCs. The optic and electric chemical properties have beeninvestigated in detail as well as the photovoltaic performance.At first briefly introduces the structure and the mechanism of the dye-sensitized solarcell, the characterization of the properties of the cell device, and the influence of electrolyteon cell efficiency. The progress in development of all kinds of electrolytes has been reviewed.Secondly describes the design and synthesis of the new sensitizer usingferrocene-triphenylamine as the electron donor, thiophene as the π-conjugated bridge, andcyanoacrylate as the electron acceptor.At the same time compares the photophysical and electrochemical properties of theredox-couple functionalized dye and the reference dye,andstudies the photovoltaicperformance of the two dyes.Finally By synthesis and properties of the above, this paper summarizes the work.