Polymeric semiconductors based on donor-acceptor (D-A) conjugated polymers have emerged as a promising class of materials for various applications due to their excellent solution processability, low cost, and intrinsic flexibility. The use of the indacenodithiophene (IDT) unit as a building block has received significant attention due to its unique pentacyclic ring structure and exceptional photophysical and electronic properties. This review focuses on the latest progress in the field of IDT-based polymers. We discuss the versatility of IDT as a structural molecular engineering tool, along with the use of various electron-deficient acceptors as comonomers and modifications to the IDT structure unit. These advancements have led to improved device performance, particularly in organic electronics applications such as photodetectors, solar cells, field-effect transistors, and thermoelectric devices. In summary, this review serves as a valuable reference for researchers who are interested in creating high-performance polymeric semiconductors using the IDT building block for a range of optoelectronic devices.

中文翻译：

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茚并二噻吩和基于茚并二噻吩并噻吩的供体-受体共轭聚合物的最新进展：从有机电子器件的设计到器件性能

基于供体-受体（DA）共轭聚合物的聚合物半导体由于其优异的溶液加工性、低成本和固有的灵活性，已成为一种有前途的材料，适用于各种应用。由于其独特的五环结构和优异的光物理和电子性能，茚并二噻吩（IDT）单元作为结构单元的使用受到了极大的关注。本综述重点关注IDT基聚合物领域的最新进展。我们讨论了 IDT 作为结构分子工程工具的多功能性，以及使用各种缺电子受体作为共聚单体以及对 IDT 结构单元的修饰。这些进步提高了器件性能，特别是在光电探测器、太阳能电池、场效应晶体管和热电器件等有机电子应用中。总之，对于有兴趣使用 IDT 构建模块创建一系列光电器件的高性能聚合物半导体的研究人员来说，这篇综述可以作为有价值的参考。