Porphyrins are essential constituents of biological systems and play critical roles in light harvesting, oxygen transport, and biocatalysis. The exceptional photophysical and electrochemical properties of porphyrin derivatives make them useful molecules for a wide range of applications. Nevertheless, inherent limitations, such as instability, self-aggregation, and poor water solubility limit their use in optoelectronics, photodynamic therapy (PDT), and drug delivery, among others. Dendrimers have received significant attention for their precise construction, unique molecular architecture, and extensive potential for functionalization. The integration of porphyrin derivatives into dendrimers can combine the distinctive light-harvesting capabilities of porphyrins with the structural properties of dendrimers, surmounting the limitations associated with porphyrins. This review covers the key optical and photophysical properties of porphyrin dendrimers. It provides an overview of energy and electron transfer, as well as two-photon absorption, and emphasizes recent advancements in the development of porphyrin dendrimers for photoconversion in organic photovoltaics. Finally, the challenges and perspectives presented by this emerging class of materials for photodynamic therapy (PDT) applications are examined and discussed.

卟啉是生物系统的重要组成部分，在光捕获、氧运输和生物催化中发挥着关键作用。卟啉衍生物优异的光物理和电化学性质使其成为具有广泛应用的有用分子。然而，固有的局限性，如不稳定性、自聚集和水溶性差等限制了它们在光电子学、光动力疗法（PDT）和药物输送等领域的应用。树枝状聚合物因其精确的结构、独特的分子结构和广泛的功能化潜力而受到广泛关注。将卟啉衍生物整合到树枝状聚合物中，可以将卟啉独特的光捕获能力与树枝状聚合物的结构特性结合起来，克服了卟啉的局限性。本综述涵盖了卟啉树枝状聚合物的关键光学和光物理性质。它概述了能量和电子转移以及双光子吸收，并强调了用于有机光伏光转换的卟啉树枝状聚合物的最新进展。最后，研究和讨论了这类新兴材料在光动力治疗 (PDT) 应用中所面临的挑战和前景。