Influence of Ancillary Ligands in Dye-Sensitized Solar Cells

被引:234
作者
Pashaei, Babak [1 ]
Shahroosvand, Hashem [1 ]
Graetzel, Michael [2 ]
Nazeeruddin, Mohammad Khaja [3 ]
机构
[1] Univ Zanjan, Dept Chem, Zanjan, Iran
[2] Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
[3] Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, Grp Mol Engn Funct Mat, CH-1951 Sion, Switzerland
基金
瑞士国家科学基金会;
关键词
HETEROLEPTIC RUTHENIUM COMPLEXES; EXTINCTION COEFFICIENT SENSITIZER; CHARGE-TRANSFER SENSITIZERS; OPEN-CIRCUIT VOLTAGE; LIGHT-HARVESTING CAPABILITY; RU(II) BIPYRIDYL COMPLEXES; NANOCRYSTALLINE TIO2 FILMS; EXTENDED PI-CONJUGATION; NCS-FREE SENSITIZERS; HIGHLY EFFICIENT;
D O I
10.1021/acs.chemrev.5b00621
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
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 pi-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.
引用
收藏
页码:9485 / 9564
页数:80
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