LAUSR

Abstract Dye-sensitized solar cells (DSSCs) have received a lot of attention nowadays. One of the most essential parts of DSSC is the counter electrode (CE), which is usually made of platinum. Since platinum is an expensive material, using the SnSe electrode is suggested. By selenizing a layer of tin on glass thru sputtering, SnSe is obtained and used as the counter electrode in a DSSC. Also, tin oxide is used as photoanode in the structure of the solar cell. By changing the selenization temperature, the charge transport and electrocatalytic properties of the layer was improved and the solar cell performance was optimized. Morphological properties of the layers were investigated with FESEM images. CV and EIS analyzes were carried out to test the electrocatalytic and charge transport properties. Also, the current-voltage curve of the constructed cells reveals that the cell, which is made of the synthesized layer at 450 °C with an efficiency of 4.9%, gives the best performance.