研究目的
Investigating the effects of n-type side chains on small molecular conjugated electrolytes for highly efficient non-fullerene polymer solar cells.
研究成果
The study successfully demonstrated that SMCEs with n-type side chains can significantly improve the performance of NF-PSCs, achieving a high PCE of 13.21% with excellent thickness-insensitive property. This provides a new guidance for developing highly efficient cathode interlayers via side chain engineering strategy.
研究不足
The study focuses on the use of SMCEs as cathode interlayers in NF-PSCs, and the findings may not be directly applicable to other types of solar cells or interfacial materials.
1：Experimental Design and Method Selection:
The study involved the design and synthesis of novel SMCEs with n-type side chains for use as cathode interlayers in NF-PSCs.
2：Sample Selection and Data Sources:
The SMCEs were synthesized and characterized using UV-visible absorption spectra, cyclic voltammetry, and ultraviolet photoelectron spectroscopy.
3：List of Experimental Equipment and Materials:
The materials included PBDTS-TDZ as the polymer donor and IT-4F as the acceptor. The equipment used for characterization included UV-vis spectrophotometer, CV, and UPS.
4：Experimental Procedures and Operational Workflow:
The SMCEs were dissolved in methanol and spin-coated on the active layer. The devices were fabricated with an architecture of ITO/PEDOT:PSS/PBDTS-TDZ:IT-4F/CIL/Al.
5：Data Analysis Methods:
The performance of the devices was evaluated based on their photovoltaic parameters, and the interfacial modification ability of the SMCEs was investigated using impedance spectroscopy and space charge limited current measurements.
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