Photophysical, electrochemical, and DFT studies of the novel azacrownbridged dinuclear ruthenium dye sensitizers for solar cells
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
University of Namibia
Abstract
A dinuclear ruthenium bipyridyl complex with 1,10-diaza-18-crown-6 bridging ligand was synthesized and characterized. Its photophysical and electrochemical properties were also studied. DFT computations were performed to complement the experimental investigations. Analysis of the results indicates that the path in which charges move from one metal center to the other is significant for effective electronic coupling. However, electron transfer between the two ruthenium centers is hindered by the azacrown bridging ligand, compared to the smooth electronic transfer reported for a related dye involving an azo bridging ligand.
Description
Keywords
Bridging ligands, Charge transfer, Dinuclear ruthenium complex, Electronic coupling
Citation
Uahengo, V., et al. (2019). Photophysical, electrochemical, and DFT studies of the novel azacrownbridged dinuclear ruthenium dye sensitizers for solar cells. Polyhedron, 173, 1-7.