研究目的
Investigating the effect of oleylamine capped gold nanoparticles (AuOA NPs) on the power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs) through the excitation of localized surface plasmon resonance (LSPR).
研究成果
The incorporation of AuOA NPs into DSSCs enhances light absorption and PCE through the LSPR effect. Optimal performance was achieved with 2.4 wt.% AuOA NPs, demonstrating the potential of plasmonic effects in improving solar cell efficiency. Further research is needed to address the limitations observed at higher nanoparticle concentrations.
研究不足
The study found that higher concentrations of AuOA NPs (beyond 2.4 wt.%) led to a decrease in PCE, possibly due to inhibited diffusion processes in TiO2. The exact mechanism of this inhibition and potential optimization strategies were not fully explored.
1：Experimental Design and Method Selection:
The study involved the synthesis of AuOA NPs and their incorporation into N-719 dye solutions at varying weight percentages. The DSSCs were fabricated with these solutions to study the LSPR effect on PCE.
2：Sample Selection and Data Sources:
N-719 dye solutions with AuOA NPs at concentrations of 0 wt.%, 1.44 wt.%, 1.92 wt.%, 2.4 wt.%, 4.8 wt.%, 7.2 wt.%, and 9.6 wt.% were prepared and used in DSSCs.
3：44 wt.%, 92 wt.%, 4 wt.%, 8 wt.%, 2 wt.%, and 6 wt.% were prepared and used in DSSCs.
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: UV-Vis spectrophotometer, Fourier transform infrared spectrophotometer (FTIR-Thermo Scientific Nicolet iS50), electrochemical impedance spectroscopy (EIS) instrument (Gamry 3000 reference), Transmission Electron Microscope (TEM).
4：Experimental Procedures and Operational Workflow:
AuOA NPs were synthesized, characterized, and incorporated into dye solutions. DSSCs were fabricated and their photovoltaic characteristics were measured under light illumination.
5：Data Analysis Methods:
The J (cid:1) V characteristics and EIS measurements were analyzed to determine the PCE and understand the charge transfer processes.
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