THE CHARACTERIZATION OF DYE-SENSITIZED SOLAR CELL MODIFIED BY REDUCED GRAPHENE OXIDE AND ZrO2 DOPED TiO2 NANOFIBERS UNDER T5 FLUORESCENT LAMP

THE CHARACTERIZATION OF DYE-SENSITIZED SOLAR CELL MODIFIED BY REDUCED GRAPHENE OXIDE AND ZrO2 DOPED TiO2 NANOFIBERS UNDER T5 FLUORESCENT LAMP

Dye-sensitized solar cells (DSSCs) have greater potential for development than other types of solar cells used for indoor lighting.A growing number of studies in the literature have shown that DSSCs exhibit superior photovoltaic conversion efficiency for indoorlighting applications. In this study, we modified a photoanode with TiO2 nanofibers doped with ZrO2 and reduced graphene oxide toincrease the specific surface area and electron transport capability of the DSSC. Next, we placed the DSSC, which was prepared withcommercial titanium dioxide P25, under T5 fluorescent lighting and found that it could achieve a photovoltaic conversion efficiency of10.37% under T5 fluorescent lighting. When the light intensity was reduced from 1.75 mW/cm2 to 0.51mW/cm2, the photovoltaicefficiency of DSSC prepared with P25 TiO2 could be increased to 26.63%. When DSSC was modified with TiO2 nanofibers dopedwith ZrO2 and reduced graphene oxide, a photovoltaic conversion efficiency of 18.62% under T5 fluorescent lighting was achieved.When the light intensity was reduced from 1.75mW/cm2 to 0.51mW/cm2, the photovoltaic efficiency increased to 46.63%. The overlapof the T5 fluorescence spectrum with the spectrum of dye N719 resulted in effective light absorption, which promoted electronexcitation. Our findings confirmed that DSSC exhibits better photovoltaic performance under indoor lighting.