Enhanced photoelectrical performance of DSSC by Co-doped SnO sub( 2) nanoparticles

Investigation of the I-V characteristics of the DSSC based on interconnected with cobalt-doped SnO sub( 2)sub nanoparticles covered with a nano-scale thin layer which was absorbed by natural dyes are described. The presence of co-doped SnO sub( 2)sub has been confirmed by its characteristic XRD pattern and the shape of the particle is confirmed by SEM. The thickness of the protective layer can be conveniently controlled by the mole value of co-doped SnO sub( 2)sub used in the preparation of the thin film and the optimum conditions for best performance of the DSSC are presented together with possible explanation for the variations observed. An optimum light-to-electricity conversion efficiency of 0.37 % in the presence of a layer of co-doped SnO sub( 2)sub has been obtained which enhancement over the cell prepared with other natural dyes. The characterization of the sample using different techniques was explained (change the sentence).