International Eurasian Conference on Science, Engineering and Technology (EURASIANSCIENTECH 2018), Ankara, Türkiye, 22 - 23 Kasım 2018, ss.2833-2838
In this study, zinc
oxide (ZnO), which has attracted attention due to its applications in dye
sensitive solar cells, has been used as electrode in DSSC. ZnO nanostructures
were produced by hydrothermal synthesis method. Polyvinylpyrrolidinone (PVP)
was used as the surfactant in the production of ZnO nanostructures and sodium
hydroxide (NaOH) was used as the reactant. In order to determine morphological
features of synthesized ZnO nanostructures, Scanning Electron Microscopy (SEM)
and X-ray diffraction method were used to determine structural features. For
dye-sensitive solar cell production, firstly TiCl4 thin film coated
on fluorine doped tin oxide (FTO) glass and then ZnO nanostructures coated by a
doctor blade method on the TiCl4 layer. ZnO film, which is used as
electrode in DSSC fabrication is immersed in ruthenium based paint solution at
different temperatures (at room temperature and 80 °C). ZnO films were kept in
a ruthenium-based dye solution for 16 hours to allow dye absorption. In order
to create the DSSC structure, the synthesized electrolyte was dropped on the
ZnO electrode and the platinum (Pt) coated glass with a small hole in the
middle was clipped together with the counter electrode. I-V measurements of the produced solar cells were studied by using
a standard solar simulator of 1 Sun intensity with AM 1.5 filter. The effect on
different parameters such as open circuit voltage, short circuit current,
filling factor , and power conversion efficiency of DSSCs were analysed.