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Pellegrin, Y., Le Pleux, L., Blart, E., Renaud, A., Chavillon, B., Szuwarski, N., Boujtita, M., Cario, L., Jobic, S., Jacquemin, D. & Odobel, F. (2011) Ruthenium polypyridine complexes as sensitizers in NiO based p-type dye-sensitized solar cells: Effects of the anchoring groups. J. Photochem. Photobiol. A-Chem. 219 235–242.
Added by: Laurent Cournède (2016-03-10 21:32:21) |
| Type de référence: Article DOI: 10.1016/j.jphotochem.2011.02.025 Numéro d'identification (ISBN etc.): 1010-6030 Clé BibTeX: Pellegrin2011a Voir tous les détails bibliographiques  |
Catégories: MIOPS Mots-clés: Density functional theory, Dye sensitization, electron-transfer, films, hydrogen-production, interfaces, molecular dyes, nanocrystalline tio2, Nickel oxide, p-Type semiconductor, phosphonate, photovoltaic devices, Ruthenium polypyridine complex, semiconductors, Solar cell, visible-light Créateurs: Blart, Boujtita, Cario, Chavillon, Jacquemin, Jobic, Le Pleux, Odobel, Pellegrin, Renaud, Szuwarski Collection: J. Photochem. Photobiol. A-Chem. |
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| Résumé |
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In this contribution, we investigate the photovoltaic performances of four ruthenium trisbipyridine complexes in NiO based dye-sensitized solar cells (DSSC). The four complexes differ by the nature of the anchoring groups, which are either carboxylic acids, biscarbodithioic acids catechol or methyl phosphonic acids. The properties of the dyes were studied by electrochemistry, absorption and emission spectroscopies, surface binding measurements, time-dependent density functional theory (TDDFT) as well as by determining their photoconversion efficiencies in DSSCs under AM 1.5. We show that these simple dyes are relatively efficient sensitizers in NiO-based DSSCs, since some of them give photoconversion efficiencies comparable to that of a standard benchmark dye coumarin C343. We also demonstrate that both catechol and methyl phosphonic acid are promising binding groups for NiO sensitizers to replace classical carboxylic acids in NiO sensitizers and finally we report molecular design rules to elaborate a new generation of better performing ruthenium polypyridine sensitizers. (C) 2011 Elsevier B.V. All rights reserved.
Added by: Laurent Cournède |