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通过减少链纠来提高聚合物供体和聚合物受体的可混合性,实现18.64%的效率所有聚合物太阳能电池

Min Deng¹, Xiaopeng Xu², Wuke Qiu²

¹College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, P. R. China.

Angewandte Chemie (International ed. in English)

|June 11, 2024

概括

新的聚合小分子接受器 (PSMA) 通过减少链纠和增强可混合性来提高聚合物太阳能电池的性能. 这导致了优化的形态和更高的功率转换效率 (PCE).

科学领域:

材料科学材料科学材料科学
有机电子有机电子
太阳能光伏发电是如何实现的

背景情况:

全聚合物太阳能电池 (PSC) 正在迅速发展,由聚合小分子接受器 (PSMA) 驱动.
聚合物供体 (P_Ds) 和聚合物受体 (P_As) 中强大的链纠阻碍了PSC中的混合性和混合形态优化.

研究的目的:

设计新的P_A,减少聚合物链纠并提高混合性.
通过优化混合物形态来提高PSC的性能.

主要方法:

合成了三种P_A (PBTPICm-BDD,PBTPICγ-BDD,PBTPICF-BDD) 使用BDD单元与Y型非富勒林小分子受体 (NF-SMA) 共聚合.
研究了P_D/P_A混合物的混合性和形态,包括与PYFT-o.o.的三元混合物.
制造和特征的PSC设备. 制造和特征的PSC设备. 制造和特征的PSC设备.

主要成果:

设计的P_As表现出减少了链条纠,并提高了与P_Ds.的溶解性.
PBTPICγ-BDD和PBTPICF-BDD显示了与PBQx-TCl的增强混合性,导致了优化的形态.
在二元混合物中实现了17.50%和17.17%的功率转换效率 (PCE).
一种三元混合物 (PBQx-TCl:PBTPICγ-BDD:PYFT-o) 达到了18.64%的显著PCE.

结论:

具有BDD单元的P_A的战略设计有效地减轻了链条纠,并改善了PSC中的混合可变性.
通过增强的可混合性和三元组件添加的优化形态导致显著提高设备性能.
这些发现为开发高效全聚合物太阳能电池提供了有希望的途径.

关键词:

所有聚合物太阳能电池都是聚合物.纠纠的纠是一个问题.混杂性混杂性混杂性固体障碍物固体障碍物固体障碍物一个三元混合物.

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