研究目的
Investigating the role of graphene as a protection layer to prevent metal-induced degradation and halide diffusion in perovskite solar cells (PSCs) using a novel flexible hybrid transparent conductive electrode (TCE).
研究成果
The introduction of a graphene layer on a Cu grid-based TCE effectively prevented metal and halide ion interdiffusion between the metal electrode and perovskite layer, enhancing the performance and mechanical durability of PSCs. This work provides a strategy to overcome metal-induced degradation in PSCs using alternative metal-based TCE platforms.
研究不足
The study primarily focuses on the mechanical and chemical stability of GCEP in PSCs. Potential limitations include the scalability of the fabrication process and the long-term stability under real-world operating conditions beyond the tested scenarios.
1：Experimental Design and Method Selection:
The study involved the development of a flexible hybrid TCE consisting of a Cu grid-embedded polyimide film and a graphene capping layer (GCEP). The methodology included the fabrication of GCEP, characterization of its optoelectrical properties, and evaluation of its performance in PSCs.
2：Sample Selection and Data Sources:
Samples included GCEP, CEP (Cu grid-embedded polyimide film without graphene), and ITO-based electrodes for comparison. Data were collected through optical microscopy, SEM, Raman spectroscopy, XRD, and electrical measurements.
3：List of Experimental Equipment and Materials:
Equipment used included SEM, Raman spectrometer, XRD, UV-vis spectrometer, and solar simulator. Materials included polyimide, Cu grid, graphene, perovskite, PEDOT:PSS, PC61BM, and ZnO nanoparticles.
4：Experimental Procedures and Operational Workflow:
The process involved the fabrication of GCEP, deposition of perovskite layers, assembly of PSCs, and performance testing under various conditions.
5：Data Analysis Methods:
Data were analyzed using standard techniques for optical, electrical, and morphological characterization, including statistical analysis of device performance metrics.
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