研究目的
To investigate the synergetic effect of combining two asymmetric segments, TBD and TBF, in a terpolymer methodology for high-performance polymer solar cells, aiming to optimize molecular packing, reduce non-radiative energy loss, and achieve high power conversion efficiency.
研究成果
The terpolymer methodology combining TBD and TBF segments successfully optimized molecular packing and reduced non-radiative energy loss, leading to high-performance polymer solar cells with PCEs up to 15.0%. This approach demonstrates the potential for achieving even higher efficiencies and enriching the diversity of organic photovoltaic materials.
研究不足
The study focuses on the combination of TBD and TBF segments with BDD, and the applicability of the terpolymer methodology to other electron-deficient systems is yet to be fully explored.
1：Experimental Design and Method Selection:
The study utilized a random terpolymer methodology combining TBD and TBF segments with BDD. The polymers were synthesized using palladium-catalyzed cross-coupling condensation polymerization.
2：Sample Selection and Data Sources:
The polymers were characterized using UV-vis absorption spectra, cyclic voltammetry, and gel permeation chromatography.
3：List of Experimental Equipment and Materials:
High temperature gel permeation chromatography, thermogravimetric analysis, and grazing-incidence wide-angle X-ray scattering were used.
4：Experimental Procedures and Operational Workflow:
The polymers were synthesized, characterized, and used to fabricate PSCs with a conventional structure of ITO/PEDOT:PSS/polymer:IT-4F/PDINO/Al.
5：Data Analysis Methods:
The photovoltaic properties were analyzed using current density-voltage curves, electroluminescence spectroscopy, and transient absorption spectroscopy.
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