Elshorbagy, Mahmoud Hamdy MohamedLópez Fraguas, EduardoSánchez Pena, José ManuelGarcía Cámara, BraulioVergaz Benito, Ricardo2021-12-212021-12-212020-05-15Elshorbagy, M. H., López-Fraguas, E., Sánchez-Pena, J. M., García-Cámara, B. & Vergaz, R. (2020). Boosting ultrathin aSi-H solar cells absorption through a nanoparticle cross-packed metasurface. Solar Energy, 202, 10–16.0038-092Xhttps://hdl.handle.net/10016/33814Hydrogenated amorphous silicon (a-Si:H) solar cells have some performance limitations related to the mobility and lifetime of their carriers. For this reason, it is interesting to explore thin-film solutions, achieving a tradeoff between photons optical absorption and the electrical path of the carriers to get the optimum thickness. In this work, we propose the insertion of a metasurface based on a cross-patterned ITO contact film, where the crosses are filled with nanospheres. We numerically demonstrate that this configuration improves the photogenerated current up to a 40% by means of the resonant effects produced by the metasurface, being independent on the impinging light polarization. Light handling mechanisms guide light into the active and auxiliary layers, increasing the effective absorption and mitigating the Staebler-Wronski effect. The selection of optimum materials and parameters results in nanospheres of ZnO with a 220 nm radius.7eng© 2020 The Authors. Published by Elsevier Ltd on behalf of International Solar Energy Society. This is an open access article under the CC BY license.Atribución 3.0 EspañaHydrogenated solar cellNanostructureMetasurfaceAbsorption enhancementShort-circuit currentresearch articleElectrónicaFísicahttps://doi.org/10.1016/j.solener.2020.03.075open access1016Solar Energy202AR/0000024479