%0 Journal Article
%T Photoelectrochemical Characterizations Of ZnO Based Dye-Sensitized Solar Cell
%A P. K. Baviskar
%A D. B. Salunkhe
%A Babasaheb R. Sankapal
%J Journal of Scientific Review
%D 2010
%I Scientific Review Board
%X Dye-sensitized solar cells (DSSCs) based on organic dyes adsorbed on nano-particles of zinc oxide (ZnO) electrode have received considerable attention because of their high incident solar light to power conversion efficiency and low production cost. Multiple organic dyes with different chemical structure have been developed so far. They have been tested for their photovoltaic performances with combinations of different photo-anodes. In order to produce efficient DSSCs, it is imperative to develop effective organic sensitizers. The sensitizers need to be optimized for the chemical structures to provide beneficial electron communication between a ZnO electrode and electrolyte for good light-harvesting future. . The current investigation focuses on synthesis of ZnO photo-anode by simple and inexpensive chemical bath deposition method at room temperature, which can be potentially used for mass production. The photoelectrochemical characteristic of ZnO based DSSCs with liquid electrolyte as hole conductor & platinum as a counter electrode was also studied. Different types of dyes e.g. Rose Bengal (metal free) and N3 (Ru-metal) dyes were examined as sensitizers for ZnO based DSSCs. The photoelectrochemical characteris-tics were measured under simulated sunlight with the radiant power of 100 mW/cm2 at AM 1.5 (1 sun) conditions. The photocurrent density versus photovoltage char-acteristics was measured with electrochemical analyzer (Potentiostat/Galvanostat). Moreover, two types of dyes (metallic and metal free) were adsorbed on photoanode to examine its photoelectrochemical behavior. It was found that metal free Rose Bengal dye has better photoelectrochemical performance than N3 dye. The calculated efficiencies for ZnO based DSSCs are 0.34 % and 0.68 % for N3 and Rose Bengal dyes respectively with the structure FTO/ZnO/Dye/Electrolyte/Pt.
%K Zinc oxide
%K DSSC
%K wet chemical synthesis
%K metal free dye
%U http://www.srbmag.org/index.php/srbmag/article/view/67