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We demonstrate that a combined optimization approach based on the sequential alternation of theoretical\udanalysis and experimental realization gives rise to plastic supported dye solar cells for which both light\udharvesting efficiency and electron collection are maximized. Rationalized configurations with optimized light\udtrapping and charge extraction are realized to achieve photoanodes on plastic prepared at low temperature,\udshowing a power conversion efficiency of 8.55% and a short circuit photocurrent of 16.11 mA cm 2,\udunprecedented for plastic based dye solar cell devices. Furthermore, the corresponding fully flexible designs\udpresent stable mechanical properties after several bending cycles, displaying 7.79% power conversion\udefficiency, an average broadband internal quantum efficiency above 90%, and a short circuit photocurrent\udof 15.94 mA cm 2, which is the largest reported value for bendable cells of this sort to dateFinancial support from the European Research Council under the European Union's Seventh Framework Programme (FP7/2007–2013)/ERC grant agreement no. 307081 (POLIGHT) and the Spanish Ministry of Economy and Competitiveness under grant MAT2014-54852-R is gratefully acknowledged. YL acknowledges the financial support from the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme FP7/2007–2013/ under REA grant agreement no. 622533. AJS thanks Spanish Ministry of Economy and Competitiveness for funding through an FPI program under the project MAT2011–23593. MJK acknowledges funding support from the Global Frontier R&D Program on Center for Multiscale Energy System (2012M3A6A7054856), the Technology Development Program to Solve Climate Changes (2015M1A2A2056824) and 2015 University-Institute cooperation program funded by the National Research Foundation under the Ministry of Science, ICT & Future Planning, Korea. This work was also supported by the KIST institutional programs.We acknowledge support by the CSIC Open Access Publication Initiative through its Unit of Information Resources for Research (URICI).Peer reviewe

Maximized performance of dye solar cells on plastic: a combined theoretical and experimental optimization approach