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Synthesis and photo electrochemical characterization of an extended π-conjugated heteroleptic ruthenium (II) complex

Jella, Tejaswi; Selvaraj, P.; Upadhyaya, Hari M.; Mallick, Tapas K.; Sundaram, Senthilarasu; Giribabu, Lingamallu

Authors

Tejaswi Jella

P. Selvaraj

Hari M. Upadhyaya

Tapas K. Mallick

Lingamallu Giribabu



Abstract

A new extended π-conjugate heteroleptic ruthenium(II) complex (m-HRD-1) that contains a 4,4'-bis-2-(5(3,5-di-tert-butylphenyl)thiophene-2-yl)vinyl)2,2'-bipyridine as ancillary ligand, 4,4’-dicaboxy-2,2'-bipyridine as anchoring group, and two thiocyanate ligands in its molecular structure have been designed, synthesized and characterized by CHN, Mass, 1H-NMR, UV-Vis, and fluorescence spectroscopies as well as cyclic voltammetry. Electrochemical and theoretical studies showed that the LUMO of the sensitizer is above TiO2 conduction band and the HOMO is below the redox potential of the electrolyte. This new sensitizer was tested in dye-sensitized solar cells using liquid redox couple (I-/I3-) and its performance was compared to the standard sensitizer N719.

Citation

Jella, T., Selvaraj, P., Upadhyaya, H. M., Mallick, T. K., Sundaram, S., & Giribabu, L. (2017). Synthesis and photo electrochemical characterization of an extended π-conjugated heteroleptic ruthenium (II) complex. MOJ Solar and Photoenergy Systems, 1(2), https://doi.org/10.15406/mojsp.2017.01.00007

Journal Article Type Article
Publication Date Oct 6, 2017
Deposit Date Mar 14, 2023
Publicly Available Date Mar 15, 2023
Electronic ISSN 2577-8374
Publisher MedCrave
Peer Reviewed Peer Reviewed
Volume 1
Issue 2
DOI https://doi.org/10.15406/mojsp.2017.01.00007
Keywords dye sensitized solar cells, extended p-conjugation, bipyridine, heteroleptic, redox electrolyte

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