汕头大学武庆贺研究团队报道了非富勒烯太阳能电池用亚胺功能化聚合物供体研究进展。相关研究成果于2024年4月12日发表在《中国化学》。

近年来，在有机太阳能电池（OSCs）中使用非富勒烯电子受体作为富勒烯衍生物的替代品已经发生了转变。这种变化需要聚合物供体具有相容物理性质，如吸收范围、HOMO能级、混溶性和结晶度。此外，聚合物供体的高成本和较差的批间重复性也阻碍了未来的大规模生产。这些都突出了探索替代类型聚合物供体的必要性。

酰亚胺功能化的构建单元具有几个关键特性，这些特性使其聚合物在非富勒烯OSCs中极具前景。这些特性包括易于合成、强吸电子能力、刚性和共面结构，以及通过酰亚胺侧链容易调节溶解度的能力。该文中，研究人员总结了酰亚胺构建单元的合成路线，以及酰亚胺功能化聚合物供体的结构演变，重点讨论了聚合物结构对其物理、光电和光伏性能的影响。研究人员希望这篇综述将成为未来研究酰亚胺功能化聚合物的催化剂，以实现高性能、高性价比和耐用的有机太阳能电池（OSCs）。

附：英文原文

Title: Recent Advances of Imide-Functionalized Polymer Donors for Non-fullerene Solar Cells†

Author: Huijuan Wang, Songmin Mo, Dongyan Li, Qinghe Wu

Issue&Volume: 2024-04-12

Abstract: In recent years, there has been a shift towards using non-fullerene electron acceptors in organic solar cells (OSCs) as a replacement for fullerene derivatives. This change requires polymer donors that possess compatible physical properties, such as absorption range, HOMO energy level, miscibility, and crystallinity. Moreover, the high cost and poor batch-to-batch reproducibility of polymer donors also hinder future large-scale manufacturing. These emphasize the need to explore alternative types of polymer donors. The imide-functionalized building units possess several key attributes that make their polymers highly promising for non-fullerene OSCs. These attributes include ease of synthesis, strong electron-withdrawing ability, rigid and co-planar structure, and the ability to easily tune solubility through imide side chains. In this review, we summarized the synthetic routes of imide building units, and the structural evolution of imide-functionalized polymer donors by focusing on the effects of polymer structure on their physical, optoelectronic, and photovoltaic properties. We hope that this mini-review will serve as a catalyst for future research on imide-functionalized polymers toward high-performance, cost-effective, and durable organic solar cells (OSCs).

DOI: 10.1002/cjoc.202300765

Source: https://onlinelibrary.wiley.com/doi/full/10.1002/cjoc.202300765