通过固体添加剂在基于聚（3-己基噻吩）的有机太阳能电池中实现超过10%的效率。
Achieving over 10 % Efficiency in Poly(3-hexylthiophene)-Based Organic Solar Cells via Solid Additives.
作者信息
Yang Chenyi, Yu Runnan, Liu Chenyu, Li Hao, Zhang Shaoqing, Hou Jianhui
机构信息
School of Chemistry and Biology Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China.
State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
出版信息
ChemSusChem. 2021 Sep 6;14(17):3607-3613. doi: 10.1002/cssc.202100627. Epub 2021 Jun 1.
The photovoltaic performance of organic solar cells (OSCs) based on poly(3-hexylthiophene) (P3HT) has been steadily improved by developing novel non-fullerene acceptors (NFAs) in recent years. Herein, to further improve the performance of P3HT-based OSCs, a solid additive (SA4) and a typical solvent additive [1,8-diiodooctane (DIO)] were employed to process P3HT:ZY-4Cl-based OSCs, respectively. In comparison with the DIO-processed device, the SA4-processed one exhibited a more ordered molecular packing and more favorable phase separation, leading to enhanced charge transport and reduced carrier recombination. As a result, the SA4-processed device delivered a power conversion efficiency (PCE) of 10.24 %, which was much higher than that of the DIO-processed counterpart (6.26 %). This work reported a PCE over 10 % in P3HT-based OSCs for the first time, indicating the promising development of P3HT-based OSCs by morphological modulation.
近年来，通过开发新型非富勒烯受体（NFAs），基于聚（3-己基噻吩）（P3HT）的有机太阳能电池（OSCs）的光伏性能得到了稳步提升。在此，为了进一步提高基于P3HT的OSCs的性能，分别采用了一种固体添加剂（SA4）和一种典型的溶剂添加剂[1,8-二碘辛烷（DIO）]来制备基于P3HT:ZY-4Cl的OSCs。与经DIO处理的器件相比，经SA4处理的器件表现出更有序的分子堆积和更有利的相分离，从而导致电荷传输增强和载流子复合减少。结果，经SA4处理的器件实现了10.24%的功率转换效率（PCE），远高于经DIO处理的对应器件（6.26%）。这项工作首次报道了基于P3HT的OSCs的PCE超过10%，表明通过形态调制，基于P3HT的OSCs具有良好的发展前景。
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