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      Toward Sustainable, Colorless, and Transparent Photovoltaics: State of the Art and Perspectives for the Development of Selective Near‐Infrared Dye‐Sensitized Solar Cells

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          Dye-sensitized solar cells.

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            Porphyrin-sensitized solar cells with cobalt (II/III)-based redox electrolyte exceed 12 percent efficiency.

            The iodide/triiodide redox shuttle has limited the efficiencies accessible in dye-sensitized solar cells. Here, we report mesoscopic solar cells that incorporate a Co((II/III))tris(bipyridyl)-based redox electrolyte in conjunction with a custom synthesized donor-π-bridge-acceptor zinc porphyrin dye as sensitizer (designated YD2-o-C8). The specific molecular design of YD2-o-C8 greatly retards the rate of interfacial back electron transfer from the conduction band of the nanocrystalline titanium dioxide film to the oxidized cobalt mediator, which enables attainment of strikingly high photovoltages approaching 1 volt. Because the YD2-o-C8 porphyrin harvests sunlight across the visible spectrum, large photocurrents are generated. Cosensitization of YD2-o-C8 with another organic dye further enhances the performance of the device, leading to a measured power conversion efficiency of 12.3% under simulated air mass 1.5 global sunlight.
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              A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films

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                Author and article information

                Contributors
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                Journal
                Advanced Energy Materials
                Adv. Energy Mater.
                Wiley
                1614-6832
                1614-6840
                November 2021
                August 08 2021
                November 2021
                : 11
                : 43
                : 2101598
                Affiliations
                [1 ]Laboratoire de Réactivité et Chimie des Solides Université de Picardie Jules Verne (UPJV) CNRS UMR 7314, 33 rue Saint Leu Amiens 80039 France
                [2 ]Dipartimento di Chimica NIS Interdepartmental and INSTM Reference Centre Università degli Studi di Torino Via Pietro Giuria 7 Torino 10125 Italy
                [3 ]Institute of Physical and Organic Chemistry Southern Federal University Rostov‐on‐Don 344090 Russia
                [4 ]Instituto Madrileño de Estudios Avanzados (IMDEA)‐Nanociencia c/Faraday, 9, Cantoblanco Madrid 28049 Spain
                [5 ]Departamento de Química Orgánica Universidad Autónoma de Madrid Madrid 28049 Spain
                [6 ]Institute for Advanced Research in Chemical Sciences (IAdChem) Universidad Autónoma de Madrid Madrid 28049 Spain
                [7 ]ICxT Interdepartmental Centre Università degli Studi di Torino Via Lungo Dora Siena 100 Turin 10153 Italy
                Article
                10.1002/aenm.202101598
                d04a952f-b7f2-4052-9a39-8c34026c857f
                © 2021

                http://creativecommons.org/licenses/by/4.0/

                http://doi.wiley.com/10.1002/tdm_license_1.1

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