For the first time, application results are reported at the intersection of organic photovoltaics and photocatalysis: An insertion strategy based on morphology modulation is proposed to reduce the π–π stacking distance, improve charge transport, and increase device efficiency. Ternary organic photovoltaic films were applied to wastewater treatment, and the removal rate of ionic Sb(III) and Sb(V) reached 100%.
Abstract:
Given the effectiveness of organic pollutants photodegradation and the excellent photovoltaic nature of organic solar cells (OSCs), this work first innovatively integrated the cross-fields of OSCs and environmental photocatalysis. Using knowledge of OSC morphology, an insertion strategy involved adding a suitable quantity of guest acceptor (Y6-O) to the PM6 donor polymer and BTP-2F-ThCl host small molecule acceptor system. Y6-O leads to tighter π–π packing, reduced domain size, and improved domain purity, resulting in favorable morphology for charge generation and transfer in devices and an improved power conversion efficiency (PCE) from 17.1% to 18.1%. Moreover, terpolymer organic photovoltaic films were applied to wastewater treatment, gaining ions Sb(III) and Sb(V) removals of 100% in 15 min, and guaiacol photodegradations of 90% in 1 h. This work significantly prompts the development of organic photovoltaics and wastewater treatment and opens views for multifunctional organic photovoltaic material applications.
Author list:
Linji Yang, Ciyuan Huang†, Yang Zhou†, Libin Zhang, Ke Sun, Houjin Luo, Yinna Liang, Yilin Wang, Tao Yang, Wei Ma, Donglou Ren, Cong Liu, Heng Zhang, Kai Chen, Hongxiang Zhu, Jianhua Xiong, Bingsuo Zou, Shuangfei Wang, Tao Liu*
How to cite:
L. Yang, C. Huang, Y. Zhou, L. Zhang, K. Sun, H. Luo, Y. Liang, Y. Wang, T. Yang, W. Ma, D. Ren, C. Liu, H. Zhang, K. Chen, H. Zhu, J. Xiong, B. Zou, S. Wang, T. Liu, Exploration 2025, 70001.
https://doi.org/10.1002/EXP.70001