研究目的
Developing cost-effective and environment-friendly counter electrodes (CEs) with high performance for the commercial application of dye-sensitized solar cells (DSSCs).
研究成果
The interfacial CCO@GO structure was synthesized via a facile self-templated method and exhibited a satisfactory PCE of 8.34% toward DSSCs. The boosted performance of CCO@GO can be attributed to the porous interfacial structure, the coexisting CuO/Co3O4 hierarchical hybrid, and GO encapsulation. This work provides an in-depth strategy for the rational design of the hierarchical structure with optimized interfacial properties, which may broaden the horizons of the applications of cost-efficient TMOs in DSSCs and other energy fields.
研究不足
The paper does not explicitly mention the limitations of the research.
1：Experimental Design and Method Selection:
The porous interfacial CuO/Co3O4@GO (CCO@GO) hybrid was fabricated by encapsulating the self-assembled CuO/Co3O4 nanosphere in graphene oxide (GO).
2：Sample Selection and Data Sources:
The samples were characterized using high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS).
3：List of Experimental Equipment and Materials:
The materials used include CuO, Co3O4, and graphene oxide (GO).
4：Experimental Procedures and Operational Workflow:
The CCO@GO hybrid was synthesized and its performance as a CE in DSSCs was evaluated through photocurrent density-voltage (J-V) measurements, cyclic voltammogram (CV), electrochemical impedance spectroscopy (EIS), and Tafel polarization.
5：Data Analysis Methods:
The performance of the CCO@GO hybrid was compared with that of pure Co3O4-based CE and commercial Pt CE.
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