Abstract
Nano-composites of TiO2 and ZnO were successfully prepared using the doctor blade application and high temperature sintering on indium-doped tin oxide (ITO) glass substrate. They were used as efficient photo anode in high performance dye-sensitized solar cells (DSSCs) assembled with N719 dye. The high-density frameworks of TiO2 and ZnO were synthesized on separate ITO conducting glass using a facile and cost-effective two-step approach to compare the output efficiency. We report on the interfacial boundary relationships, charge – collection conversion efficiency and I-V characteristics of the DSSCs with different electrolytes. The TiO2 photo anode demonstrated an enhanced solar-to-electrical energy conversion of approximately 5.41 % with KCl electrolyte which was far less than that of a ZnO photo anode with KCl electrolyte which had about 21 % increase under conditions of 1.5 AM. Because of the enhanced solar energy conversion of the ZnO photo anode, l.arboreus with KI sensitizer records 9.78 % is a promising candidate for large manufacture of high performance DSSCs modules.
Highlights
In the present day, photovoltaic technologies based on inorganic materials dominate the commercial sphere
Recent study has revealed that the photosensitizer is one of the most important materials in Dye-sensitized solar cells (DSSCs), which is responsible in determining the performance of the solar cells
The authors have shown that the output efficiency for DSSCs depends on the electrolytes used for sensitizing the solar cell and the choice of photo anode determines the photo electrochemical properties of composite films [6] .We present, analyse and discuss these data in this paper
Summary
Photovoltaic technologies based on inorganic materials dominate the commercial sphere. Dye-sensitized solar cells (DSSCs) or organic photovoltaic are not susceptible to these problems. Increased dye loading of internal surfaces of the photo-anode and improved conduction of the electrons through 2D metal oxide nano-structures are the specific objectives [2].
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