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This paper reports the efficiency enhancement in dye-sensitized solar cells (DSSCs) by incorporation of silver nanoparticles (AgNPs) in Titanium dioxide (TiO2) and using it as anode. Further enhancement in DSSC parameters was observed after TiCl4treatment on TiO2Ag anode. It was observed that the short circuit current densityJscwas increased from 6.95 to 12.58 mA/cm2by TiCl4treatment with no change inVocand fill factor increasing the efficiency from 3.29 to 5.61%. The fabricated DSSCs using TiO2AgNPs anode with both pre and post TiCl4treatment appear to have the maximum efficiency as compared to other cells. Due to effective electron transport and enhanced absorption of dye on TiO2AgNPs anode surface, the maximum conversion efficiency of 7.3% was achieved. [ABSTRACT FROM PUBLISHER]

A highly photovoltaic performance of dye-sensitized solar cell with energy conversion efficiency about 9.20% is obtained through the addition of a blocking layer and TiCl4treatment on the TiO2film to suppress dark reaction. It is found that the addition of a 1.0-μm blocking layer in the photoelectrode can improve the energy conversion efficiency of a dye-sensitized solar cell from 7.41 to 7.92%, and the further 80°C TiCl4aqueous solution treatment on the TiO2film can also obviously enhance the energy conversion efficiency from 7.92 to 9.20%, due to the efficient suppression of dark reaction in the dye-sensitized solar cell. Thus, the addition of a blocking layer and TiCl4treatment on the TiO2film is an efficient way for fabricating highly photovoltaic performance of the dye-sensitized solar cell. [ABSTRACT FROM AUTHOR]