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Open AccessArticle

In Depth Analysis of Photovoltaic Performance of Chlorophyll Derivative-Based “All Solid-State” Dye-Sensitized Solar Cells

1
ICGM, Univ. Montpellier, CNRS, ENSCM, CC1701, Place Eugène Bataillon, 34095 Montpellier, France
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Service des Matériaux Polymères et Composites (SMPC), Centre d’Innovation et de Recherche en Matériaux et Polymères (CIRMAP), Université de Mons, 20 Place du Parc, 7000 Mons, Belgium
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Department of Pure and Applied Sciences (DiSPeA), University of Urbino, 61029 Urbino, Italy
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Laboratory for Chemistry of Novel Materials, CIRMAP, University of Mons UMONS, 20 Place du Parc, 7000 Mons, Belgium
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CNRS, Univ. Limoges, XLIM, UMR 7252, F-87000 Limoges, France
*
Authors to whom correspondence should be addressed.
Academic Editors: Ahmad Mehdi and Sébastien Clément
Molecules 2020, 25(1), 198; https://doi.org/10.3390/molecules25010198
Received: 27 November 2019 / Revised: 21 December 2019 / Accepted: 28 December 2019 / Published: 3 January 2020
(This article belongs to the Special Issue Sol-Gel Chemistry. From Molecule to Functional Materials)
Chlorophyll a derivatives were integrated in “all solid-state” dye sensitized solar cells (DSSCs) with a mesoporous TiO2 electrode and 2′,2′,7,7′-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene as the hole-transport material. Despite modest power conversion efficiencies (PCEs) between 0.26% and 0.55% achieved for these chlorin dyes, a systematic investigation was carried out in order to elucidate their main limitations. To provide a comprehensive understanding of the parameters (structure, nature of the anchoring group, adsorption …) and their relationship with the PCEs, density functional theory (DFT) calculations, optical and photovoltaic studies and electron paramagnetic resonance analysis exploiting the 4-carboxy-TEMPO spin probe were combined. The recombination kinetics, the frontier molecular orbitals of these DSSCs and the adsorption efficiency onto the TiO2 surface were found to be the key parameters that govern their photovoltaic response. View Full-Text
Keywords: solid state dye sensitized solar cells; spirulina; chlorophyll; anchoring groups; EPR solid state dye sensitized solar cells; spirulina; chlorophyll; anchoring groups; EPR
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Chevrier, M.; Fattori, A.; Lasser, L.; Kotras, C.; Rose, C.; Cangiotti, M.; Beljonne, D.; Mehdi, A.; Surin, M.; Lazzaroni, R.; Dubois, P.; Ottaviani, M.F.; Richeter, S.; Bouclé, J.; Clément, S. In Depth Analysis of Photovoltaic Performance of Chlorophyll Derivative-Based “All Solid-State” Dye-Sensitized Solar Cells. Molecules 2020, 25, 198.

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