The Influences of SnO۲, Ni, Ag and Ag:SnO۲-doped TiO۲ nanopaticles on Recombination Reduction in Dye Synthesized Solar Cells

In this work, the performance of Dye Synthesized Solar Cells (DSSCs) which are manufactured based on un-doped TiO۲ and SnO۲, Ni, Ag, Ag:SnO۲-doped TiO۲ nano-particles (NPs) at ۰.۰۵ wt% as photo-anode with N۷۱۹ dye is studied. The compounds are prepared using the simple hydrothermal and sol-gel processes. Moreover, the samples are prepared based on Dr. Blade's coating method. It seen that, the efficiencies of un-doped TiO۲, SnO۲-doped TiO۲, Ni-doped TiO۲, Ag-doped TiO۲ (with two different coating thickness ۹۶ and ۱۴۶ nm) and Ag:SnO۲-doped TiO۲ NPs are measured as ۱.۲%, ۱.۲۶%, ۳.۱۵%, ۳.۵۳%, ۵.۱۳% and ۶.۹۳%, respectively. As a result, the performance improvement in the manufactured DSSCs that is based on the composite electrode Ag:SnO۲-doped TiO۲ NPs is higher. It was found that, there exists a direct relation between the band-gap reduction and electron transfer in DSSCs. The transport characteristics of charged carriers in DSSCs are evaluated using EIS.

کلیدواژه ها:

photovoltaic ، SnO۲ ، Ni ، Ag ، Ag:SnO۲-doped TiO۲ ، TiO۲-based DSSCs ، Nanoaprticle