Title:
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Highly flexible transparent electrodes containing ultrathin silver for efficient polymer solar cells
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Author:
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Ghosh, Dhriti Sundar; Liu, Quansheng; Mantilla Perez, Paola; Chen, T. L.; Mkhitaryan, Vahagn; Huang, Minghuang; Garner, Sean; Martorell Pena, Jordi; Pruneri, Valerio
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers |
Abstract:
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This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. https://authorservices.wiley.com/author-resources/Journal-Authors/licensing-open-access/open-access/self-archiving.html |
Abstract:
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Transparent electrodes (TEs) having electrooptical trade-offs better than state-of-the-art indium tin oxide (ITO) are continuously sought as they are essential to enable flexible electronic and optoelectronic devices. In this work, a TiO2-Ag-ITO (TAI)-based TE is introduced and its use is demonstrated in an inverted polymer solar cell (I-PSCs). Thanks to the favorable nucleation and wetting conditions provided by the TiO2, the ultrathin silver film percolates and becomes continuous with high smoothness at very low thicknesses (3-4 nm), much lower than those required when it is directly deposited on a plastic or glass substrate. Compared to conventional ITO-TE, the proposed TAI-TE exhibits exceptionally lower electrical sheet resistance (6.2 sq(-1)), higher optical transmittance, a figure-of-merit two times larger, and mechanical flexibility, the latter confirmed by the fact that the resistance increases only 6.6% after 10(3) tensile bending cycles. The I-PSCs incorporating the TAI-TE show record power conversion efficiency (8.34%), maintained at 96% even after 400 bending cycles. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Física -Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica -Photovoltaic power generation -Solar cells -Electrodes -Figure-of-merits -Fill factors -Flexible polymer solar cells -Transparent electrodes -Ultrathin silvers -Organic photovoltaic cells -Glass substrate -Top electrodes -Zinc-oxide -Thin-films -Seed layer -AG film -Design -Indium -microcavity -Energia solar fotovoltaica -Cèl·lules solars -Elèctrodes |
Rights:
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Document type:
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Article - Submitted version Article |
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