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Erschienen in: Journal of Materials Science 17/2017

25.05.2017 | Metals

Phenanthroline-based ruthenium complexes for enhanced charge transportation in solvent-free ionic liquid electrolyte

verfasst von: Jonnalagadda Gopinath, Kyung Hee Park, Seok-Jae Kim, Vundadi Santosh, Annadanam V. Sesha Sainath, Marshal Dhayal

Erschienen in: Journal of Materials Science | Ausgabe 17/2017

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Abstract

In the present work, we synthesized a series of 1,10-phenanthroline-based ruthenium complexes (PRCs). The PRCs were characterized by 1H and 13C NMR, UV–Vis and fluorescence spectroscopic analyses. Further, we used these PRCs complexes as effective additives in ionic liquid (IL) electrolyte to enhance current conduction in electrochemical cells. Anodic peak current in cyclic voltammetry response of PRCs showed functional group dependence on the nature of ruthenium complex. Mono-propenyl-functionalized PRC additive in IL electrolyte exhibited relatively higher current density, lower charge transfer resistance and decreased impedance compared to the tri-propenyl-functionalized PRC as well as without functional groups on 1,10-phenanthroline ligand in Ru complex. Finally, the PRCs as additives in IL electrolyte were tested in dye-sensitized solar cell which showed an increase of 65% in the efficiency when mono-propenyl-functionalized PRC complex was used as an additive.

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Metadaten
Titel
Phenanthroline-based ruthenium complexes for enhanced charge transportation in solvent-free ionic liquid electrolyte
verfasst von
Jonnalagadda Gopinath
Kyung Hee Park
Seok-Jae Kim
Vundadi Santosh
Annadanam V. Sesha Sainath
Marshal Dhayal
Publikationsdatum
25.05.2017
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 17/2017
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-017-1207-2

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