Application of TiO2 Dye-Sensitive Solar Cells by Electrochemical Storage Method

Abstract

In our study, fluorine doped transparent conductive glass plates are initially covered by TiO2 with electrochemical deposition method for obtained working electrode of dye sensitized solar cell. It has been used both for different surface enhancing materials and different experimental conditions to increase the covering of conductive glass surface by TiO2. In the first part of the study, five different solutions have been prepared using various surface enhancing materials. TiO2 thin films at different thicknesses have been obtained using chronoamperometry and cyclic voltammetry methods with five different solutions prepared. Then scanning electron microscopy images of thin films were analyzed and were found to be more suitable for the conditions of the solution of our coating. The best of two different solutions were selected for covering the second part of the study. It has been repeated five times with those solutions using chronoamperometry method for 20 min and at a potential of 1 V. After each covering, the drying process has been performed at 100 degrees C for 20 min. Also, the coatings have been obtained by cyclic voltammetry method for 20 cycles with two different solutions. Hence the best solution and method were decided on the basis of the results of UV and X-ray beam refraction analyses of obtained thin films. The working electrode of dye sensitized solar cell has been formed. Then, efficiency analysis of solar cell was performed after counter electrode had been coated with platinum.