研究目的
Investigating the synthesis and performance of new three-dimensional non-fullerene small molecule acceptors for efficient organic solar cells.
研究成果
The design strategy of SMAs with a suitable spiro core and S annulated PDI end groups is effective for achieving high performance OSCs, with potential for further efficiency improvements.
研究不足
The study focuses on the synthesis and initial performance evaluation of new acceptors; further optimization of energy levels and optical absorption could improve efficiency.
1：Experimental Design and Method Selection:
Synthesis of new three-dimensional non-fullerene small molecule acceptors with a spiro core linked with S/Se fused perylene diimides.
2：Sample Selection and Data Sources:
Use of PBDB-T-S as the donor and SCPDT-PDI4-S/SCPDT-PDI4-Se as acceptors in organic solar cells.
3：List of Experimental Equipment and Materials:
UV-Visible absorption spectra, cyclic voltammetry, atomic force microscopy, transmission electron microscopy.
4：Experimental Procedures and Operational Workflow:
Fabrication of OSCs with conventional architecture, measurement of current density-voltage characteristics.
5：Data Analysis Methods:
Analysis of optical and electrochemical properties, charge carrier mobility, and device performance.
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