Enhancement Performance of Dye-Sensitized Solar Cells from Black Rice as Dye and Black Ink as Counter Electrode with Inserting Copper on the Space between TiO_2 Particles by Using Electroplating Method

摘要

In this study, we report well performance of Dye Sensitized Solar Cell (DSSC) coated with copper (Cu) particles by using the electroplating method.The Cu particles were impregnated into the pore of the titanium dioxide (TiO_2) thin film.Particle contact between Cu and TiO_2 plays important role to reduce the recombination effect of the electron and also lead to increase the electron transport in the DSSC.Here, we used natural dye extracted from black rice and carbon from black inks as counter electrode.It is found that the efficiency of the DSSC with Cu particles is 0.105%, which is higher than that of pure DSSC (0.019%) as obtained from I-V characterization.In addition, the internal resistance of the DSSC with Cu particles was lower as measured by Electrochemical Impedance Spectroscope (EIS).