As an emerging organic semiconductor, perylene diimide (PDI) self-assembly has attracted tremendous attention in the aspects of solar cells, sensors, fluorescence probes and n-transistors, etc. In term of photocatalysis, various photocatalysts based on PDI self-assembly exhibit some unique properties, such as intrinsic Π-Π stacking structure, fast internal charge transfer, band-like electronic structure, flexible structural modifiability, well-defined morphological adjustability and excellent light absorption. This paper mainly presents recent progress on PDI self-assembly regarding how to regulate the electronic structure of PDI self-assembly. In addition, the photocatalytic applications of PDI self-assembly and its complexes were reviewed, such as environmental remedy, energy productions, organic synthesis and photodynamic/photothermal therapy, further highlighting related photocatalytic mechanisms. Finally, the review contents and some perspectives on photocatalytic research of PDI self-assembly were summarized, and some key scientific problems were put forward to direct related photocatalytic research in future.

中文翻译：

---

苝二酰亚胺自组装：从电子结构调制到光催化应用

作为一种新兴的有机半导体，苝二酰亚胺（PDI）自组装在太阳能电池、传感器、荧光探针和n型晶体管等方面引起了极大的关注。 在光催化方面，基于PDI自组装的各种光催化剂表现出一些独特的性质，如固有的 Π-Π 堆叠结构、快速的内部电荷转移、带状电子结构、灵活的结构可修改性、明确的形态可调性和优异的光吸收。本文主要介绍了 PDI 自组装的最新进展，涉及如何调节 PDI 自组装的电子结构。此外，综述了PDI自组装及其配合物的光催化应用，如环境修复、能源生产、有机合成和光动力/光热疗法，进一步突出相关的光催化机制。最后，总结了PDI自组装光催化研究的综述内容和一些观点，并提出了未来直接相关光催化研究的一些关键科学问题。