研究目的
To investigate the role of modifying photoanodes by organic titanium on charge collection efficiency enhancement in dye-sensitized solar cells (DSSCs).
研究成果
The study demonstrates that modifying photoanodes by organic titanium can significantly enhance the charge collection efficiency in DSSCs, leading to a 31% improvement in power conversion efficiency. The pre- and post-treatment strategies offer a reference for enhancing the PCE for other porous film-based DSSCs and promote the application of EPD in DSSCs.
研究不足
The study focuses on the modification of photoanodes by organic titanium and its effect on charge collection efficiency in DSSCs. The limitations include the specific conditions under which the experiments were conducted and the materials used, which may not be universally applicable.
1：Experimental Design and Method Selection:
Mesoporous TiO2 photoanodes were prepared by an electrophoretic deposition (EPD) method. Pretreating an F-doped SnO2 coated glass (FTO) substrate and post-treating a TiO2 film to introduce an anatase TiO2 layer on the FTO and the TiO2 film, respectively.
2：Sample Selection and Data Sources:
FTO substrates were used as the base for photoanodes.
3：List of Experimental Equipment and Materials:
SEM (S-4800), UV–vis spectrophotometer (Shimadzu UV-3600), electrochemical analyzer (CHI-660E), fluorophotometer (RF-5301PC).
4：Experimental Procedures and Operational Workflow:
Preparation of compact TiO2 layer on FTO, preparation of TiO2 photoanode, fabrication of DSSCs, characterization using SEM, UV–vis, electrochemical analyzer, and fluorophotometer.
5：Data Analysis Methods:
Analysis of SEM images, UV–vis absorption spectra, electrochemical impedance spectroscopy, open-circuit voltage decay, and photoluminescence spectra.
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