International Journal For Multidisciplinary Research

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Analysis Of Photovoltaic Properties Of a Quasi-Solid State Dye Sensitized Solar Cell Based On Cu-pthalocyanine

Author(s) Dr. Dhiraj Saxena
Country India
Abstract DSSCs are fabricated employing Cu-pthalocyanine (Tetrasulphonated) dye as photo sensitizer, polymer sol gel as electrolyte with PEDOT:PSS coated FTO as counter electrode. In order to enhance the efficiency, the effect of the TiCl4 (Titanium Tetrachloride ) post-treatment on nanocrystalline TiO2 films in Quasi solid state dye sensitized solar cells (DSSCs) is investigated and compared to nontreated films. The performance of both TiCl4 treated and nontreated DSSCs are analyzed by optical absorption spectra, current–voltage characteristics in dark and under illumination etc. .As a result of this post-treatment, a significant increase in conversion efficiency and short circuit current density is observed. The overall power conversion efficiency improves from 2.68 % to 3.5% upon TiCl4 treatment. This improvement is attributed to increase in dye loading, enhancement in electron lifetime and shift in the conduction band edge upon TiCl4 treatment. Here, the shift in the conduction band edge of the TiO2 upon TiCl4 treatment creates a driving force for charge transfer from the LUMO of the dye molecules to the conduction band of TiO2 which results in improved charge injection.
Keywords Dye sensitized solar cells (DSSCs), Dye binding sites, Titanium Tetrachloride treatment
Field Physics > Energy
Published In Volume 7, Issue 2, March-April 2025
Published On 2025-04-30
DOI https://doi.org/10.36948/ijfmr.2025.v07i02.43279
Short DOI https://doi.org/g9g78z
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