Perylene-3,4,9,10-tetracarboxylic diimide (PTCDI) is well-known as one the main source of vat dyes and pigments. PTCDI has a wide range of colors including red, vinaceous, violet, brown, and black. It is highly resistant to heat, light, and changes of environmental conditions. Different PTCDI derivatives can be divided into two general categories. The first group is derivatives obtained from the bonding of different groups to the nitrogen atoms in the imide group and the second category is the derivatives with the bonding of different groups to the bay side. Altering substituents can significantly change the properties of the dye. Not only PTCDI is often used as important pigment in industries, but also has interesting features such as high photochemical stability, fluorescence quantum efficiency, and strong electron acceptance character. In recent years, PTCDI derivatives have been applied in the fields of dye-sensitized solar cells (DSSC), transistors, push-pulls, biological and organic photovoltaics. It is expected that application of PTCDI and its derivative in biosystems will be much interesting because of their photochemical properties.

-3 3,4,9,10-四羧酸二酰亚胺（PTCDI）是众所周知的还原染料和颜料的主要来源之一。PTCDI具有多种颜色，包括红色，酒红色，紫色，棕色和黑色。它具有很高的耐热，耐光和环境条件变化的能力。不同的PTCDI衍生物可以分为两大类。第一组是由不同基团与酰亚胺基团中的氮原子键合而成的衍生物，第二组是由不同基团与间隔侧键合而成的衍生物。改变取代基可以显着改变染料的性质。PTCDI不仅在工业上经常用作重要的颜料，而且还具有有趣的功能，例如高的光化学稳定性，荧光量子效率和强的电子接受特性。近年来，PTCDI衍生物已应用于染料敏化太阳能电池（DSSC），晶体管，推挽，生物和有机光伏领域。预计PTCDI及其衍生物在生物系统中的应用将非常有趣，因为它们具有光化学特性。