研究目的
Investigating the application of self-assembled naphthalimide derivatives as electron extraction layers in n-i-p perovskite solar cells to improve power conversion efficiencies.
研究成果
The study demonstrated that self-assembled naphthalimide derivatives can serve as efficient electron extraction layers in n-i-p perovskite solar cells, significantly improving power conversion efficiencies. The optimal NDI-P based device achieved a PCE of 16%, highlighting the potential of molecular engineering in enhancing photovoltaic performance.
研究不足
The study focuses on the application of naphthalimide derivatives in n-i-p structured perovskite solar cells, and the scalability and long-term stability of these devices under various environmental conditions were not extensively explored.
1：Experimental Design and Method Selection:
The study involved the design and synthesis of naphthalimide derivatives (PN-P, TN-P, NDI-P) for constructing electron extraction layers via a chemical adsorption involved self-assembly method.
2：Sample Selection and Data Sources:
The samples were prepared by immersing clean ITO glasses into a solution of the derivatives.
3：List of Experimental Equipment and Materials:
Instruments used include UV-vis absorption spectroscopy, cyclic voltammetry, atomic force microscope (AFM), surface Kelvin probe force microscope (KPFM), and Ultraviolet Photoelectron Spectroscopy (UPS).
4：Experimental Procedures and Operational Workflow:
The formation of self-assembled EELs was characterized by absorption and water contact angle measurements. The photovoltaic performance was evaluated by current density–voltage (J–V) measurement under a standard AM
5：5 solar simulator. Data Analysis Methods:
The data were analyzed to deduce the energy levels of the molecules and their impact on the photovoltaic performance of the devices.
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