Chemistry Department, University of Zanjan , Zanjan, Iran.
Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland.
Chem Rev. 2016 Aug 24;116(16):9485-564. doi: 10.1021/acs.chemrev.5b00621. Epub 2016 Aug 1.
Dye-sensitized solar cells (DSSCs) have motivated many researchers to develop various sensitizers with tailored properties involving anchoring and ancillary ligands. Ancillary ligands carry favorable light-harvesting abilities and are therefore crucial in determining the overall power conversion efficiencies. The use of ancillary ligands having aliphatic chains and/or π-extended aromatic units decreases charge recombination and permits the collection of a large fraction of sunlight. This review aims to provide insight into the relationship between ancillary ligand structure and DSSC properties, which can further guide the function-oriented design and synthesis of different sensitizers for DSSCs. This review outlines how the new and rapidly expanding class of chelating ancillary ligands bearing 2,2'-bipyridyl, 1,10-phenanthroline, carbene, dipyridylamine, pyridyl-benzimidazole, pyridyl-azolate, and other aromatic ligands provides a conduit for potentially enhancing the performance and stability of DSSCs. Finally, these classes of Ru polypyridyl complexes have gained increasing interest for feasible large-scale commercialization of DSSCs due to their more favorable light-harvesting abilities and long-term thermal and chemical stabilities compared with other conventional sensitizers. Therefore, the main idea is to inspire readers to explore new avenues in the design of new sensitizers for DSSCs based on different ancillary ligands.
染料敏化太阳能电池（DSSCs）激发了许多研究人员开发具有各种特性的敏化剂，涉及锚定和辅助配体。辅助配体具有有利的光捕获能力，因此在确定整体功率转换效率方面至关重要。使用具有脂肪链和/或π扩展芳基单元的辅助配体可以减少电荷复合，并允许收集大部分阳光。本综述旨在深入了解辅助配体结构与 DSSC 性能之间的关系，这可以进一步指导针对 DSSC 的不同敏化剂的面向功能的设计和合成。本综述概述了新型和快速扩展的具有 2,2'-联吡啶、1,10-菲咯啉、卡宾、二吡啶胺、吡啶-苯并咪唑、吡啶-唑和其他芳基配体的螯合辅助配体类如何为潜在地增强 DSSC 的性能和稳定性提供了途径。最后，由于与其他传统敏化剂相比，这些类别的 Ru 多吡啶配合物具有更好的光捕获能力和长期热稳定性和化学稳定性，因此越来越受到关注，有望实现 DSSC 的大规模商业化。因此，主要思想是激发读者探索基于不同辅助配体的 DSSC 新型敏化剂设计的新途径。
