研究目的
Investigating the effect of reduced graphene oxide (rGO) addition into the dye solution on the performance of zinc oxide nanorod based dye-sensitized solar cells (DSSC).
研究成果
The addition of rGO into the dye solution enhances the performance of DSSC, with the optimal rGO to dye weight % ratio of 3:100 yielding the highest power conversion efficiency (PCE) of 0.02%. This improvement is attributed to increased light absorption leading to higher short-circuit current density (Jsc), open circuit voltage (Voc), and fill factor (FF).
研究不足
Several fabrication handling procedures still need to be improved to optimize the performance enhancement of DSSC with rGO addition.
1：Experimental Design and Method Selection:
The study involved the fabrication of ZnO nanorod thin films by chemical bath deposition (CBD) method and the synthesis of reduced graphene oxide (rGO) by chemically reducing graphene oxide (GO). The rGO was mixed into dye solutions with varying weight % ratios.
2：Sample Selection and Data Sources:
ITO glass substrates were used for the fabrication of ZnO nanorod thin films.
3：List of Experimental Equipment and Materials:
Instruments included X-ray diffractometer (XRD), scanning electron microscope (SEM), and UV-vis spectrophotometer. Materials included Zn(NO3)
4：4H2O, C6H12N4, graphite, H2SO4, NaNO3, KMnO4, H2O2, ruthenium complex, ethanol, and iodine electrolyte. Experimental Procedures and Operational Workflow:
The ZnO nanorod thin film was fabricated on ITO glass using CBD. GO was synthesized using Hummer’s method and then reduced to rGO. The DSSC was fabricated by immersing the ZnO nanorod thin film in modified dye solutions and assembling with a Pt counter electrode.
5：Data Analysis Methods:
The performance of DSSC was analyzed using J-V characteristics under solar simulator illumination.
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