研究目的
Investigating the effect of TiO2-rGO heterojunction on the electron collection efficiency and mechanical properties of fiber-shaped dye-sensitized solar cells.
研究成果
The incorporation of rGO into P25-TiO2 nanoparticle based photoanodes significantly improves the power conversion efficiency (PCE) of fiber-shaped dye-sensitized solar cells (FDSSCs) by enhancing electron transport properties and the separation of photogenerated hole-electron pairs via rGO-TiO2 heterojunction. Additionally, rGO incorporation improves the mechanical properties of FDSSCs, making them suitable for future applications in smart wearable electronics.
研究不足
The technical and application constraints of the experiments include the potential for increased recombination of photogenerated hole-electron pairs with excessive rGO content, which could decrease the electron lifetime and worsen the devices’ performances.
1:Experimental Design and Method Selection:
Incorporation of reduced graphene oxide (rGO) into P25-TiO2 nanoparticle based photoanodes for fiber-shaped dye-sensitized solar cells (FDSSCs).
2:Sample Selection and Data Sources:
P25 powder and GO aqueous solution were used to prepare P25-rGO fiber photoanodes.
3:List of Experimental Equipment and Materials:
Field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffractometer (XRD), micro-Raman spectroscope, X-ray photoelectron spectroscopy (XPS).
4:Experimental Procedures and Operational Workflow:
Fabrication of P25-rGO fiber photoanodes, assembling of DSSCs, photovoltaic measurements, and material characterizations.
5:Data Analysis Methods:
Electrochemical impedance spectral (EIS) analyses, current-voltage (I-V) measurements, and open-circuit voltage decay measurements.
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