研究目的
To improve the efficiency of organic solar cells by controlling the interfacial resistance through the use of a ternary active layer and the introduction of conjugated polymers.
研究成果
The introduction of a ternary active layer and the conjugated polymer PFN-Br effectively reduced the interfacial resistance in organic solar cells, leading to enhanced short-circuit current density and fill factor. This resulted in a high power conversion efficiency of 13.2%, demonstrating the potential of these strategies for improving OSC performance.
研究不足
The study focuses on specific materials and device structures, which may limit the generalizability of the findings to other organic solar cell configurations. Additionally, the optimization of the ternary active layer and PFN-Br thickness may require further investigation for scalability.
1：Experimental Design and Method Selection:
The study involved the fabrication of organic solar cells with a ternary active layer and the introduction of conjugated polymers to control interfacial resistance.
2：Sample Selection and Data Sources:
The active layers were formed using P(Cl-Cl)(BDD=
3：2) as the donor, IT-4F as the acceptor, and PC71BM as the third component. List of Experimental Equipment and Materials:
The materials included P(Cl-Cl)(BDD=
4：2), IT-4F, PC71BM, PFN-Br, and solvents like chlorobenzene and 1,8-diiodooctane. Equipment included a solar simulator, UV-vis spectrometer, and electrochemical impedance spectroscopy setup. Experimental Procedures and Operational Workflow:
The devices were fabricated using an inverted structure with ITO/ZnO/active layer/MoO3/Ag. The active layers were spin-coated and annealed.
5：Data Analysis Methods:
The performance of the OSCs was analyzed using current density–voltage (J–V) characteristics, external quantum efficiency (EQE), and electrochemical impedance spectroscopy (EIS).
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