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Synthesis and Characterization of Carbene-Pyridyl Anchoring Ru(II) Dyes with Various Binding Functionalities for Photoelectrochemical Cells

Abstract

Ruthenium metal complexes consisting various functionalized carbene-pyridyl anchoring ligands were synthesized, characterized, and tested for their power conversion capabilities. Carboxylate (DC101), hydroxamate (DC107), and acyl azide (DC108) groups were explored as anchors to identify a suitable and efficient binding functionality for the unique characteristic carbene-pyridyl ligand. The hydroxamate anchoring group was shown to be the most efficient anchoring group for carbene-pyridyl ligand and the device based on dye DC107 exhibited the best efficiency (η) of 4.96% compared to those of the other prepared sensitizers. Electrochemical impedance spectroscopy studies on the devices based on these dyes justified their performances. This is the first case of investigation utilizing the σ electron donating carbene-pyridine as the anchoring ligand which showed that it is more suitable to be used as an ancillary group.

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Publication details

The article was received on 29 May 2018, accepted on 07 Aug 2018 and first published on 07 Aug 2018


Article type: Paper
DOI: 10.1039/C8NJ02658K
Citation: New J. Chem., 2018, Accepted Manuscript
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    Synthesis and Characterization of Carbene-Pyridyl Anchoring Ru(II) Dyes with Various Binding Functionalities for Photoelectrochemical Cells

    S. B. Akula, C. Su, H. Wang, H. Chen, T. Li, B. Chen, C. Chang and W. Li, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ02658K

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