Investigation of Thickness Effect of Films on Performance of Dye Sensitized Solar Cell Based on ZnO and SnO2 Nanoparticles

Authors

Condensed Matter Physics Group, Faculty of Basic Science, Tarbiat Modarres University, Tehran, Iran

Abstract

In this study, the photo-anodes of dye sensitized solar cells were fabricated through doctor blade method. In this method, the zinc oxide and tin dioxide nanoparticles were used separately. In preparing of photo-anodes any layer were deposited once, twice, three and four times and sensitization carried out using N719 dye deposition for all photo-anodes. The structure and morphology shape of nanoparticles obtained using X-ray diffraction analysis and scanning electron microscopy. Efficiency parameters, such as short-circuit current density, open circuit voltage and fill factor of the current-voltage curve of cells were studied as well. The results based on the characterization of the current – voltage, show that the three times deposited layers of photo-anode through doctor blade method for both nanoparticles of metal oxides have the highest efficiency, about 3.83 and 2.24, for zinc oxide and tin dioxide respectively.

Keywords