Synthesis and characterization of a series of cobalt complexes: Investigation of their efficacy as sensitizers in dye-sensitized solar cell applications
作者:Vindhya Hegde、C.O. Sreekala、Naveen V. Kulkarni、Dineshchakravarthy Senthurpandi、Jomon Mathew
DOI:10.1016/j.molstruc.2022.133512
日期:2022.10
using Tauc plot. Utility of the prepared cobalt (II/III) complexes as sensitizers in the dye-sensitized solar cell was investigated. I–V parameters of the fabricated solar cells were noted and compared with the cell made using standard N719 dye. Among the twenty-one complexes investigated, complex C4, comprising of bis(pyrazolyl)methane ligands exhibited highest power conversion efficiency.
通过使用各种配体系统制备了一系列具有不同结构和电子特性的钴(II)配合物。所有配合物都通过光谱和分析技术进行了彻底的表征,包括 X 射线晶体学,分子结构通过 DFT 研究(M06 和 B3LYP 方法)进行了优化。将理论 HOMO-LUMO 能隙与使用 Tauc 图计算的光学带隙能量进行比较。研究了制备的钴 (II/III) 配合物在染料敏化太阳能电池中作为敏化剂的用途。记录了制造的太阳能电池的 I-V 参数,并与使用标准 N719 染料制造的电池进行了比较。在所研究的 21 个配合物中,配合物C4,由双(吡唑基)甲烷配体组成,表现出最高的功率转换效率。