Highly Efficient Bifacial MAPbI3 Perovskite Solar Cells Improved by a Light-Trapping Electrode

Nowadays all-dielectric nanophotonics is a powerful tool for improvement light management of thin-film optoelectronic devices because of low optical losses, strong light localization, and chemical robustness against such materials as halide perovskites. Here we propose a new highly efficient bifacial perovskite solar cells (PSCs) improved by introduction of light-trapping electrode (LTE), consisting of perforated Au + Spiro-OMeTAD layers covered with a densely array of SiO 2 nanospheres. Our LTE combines charge collection and light trapping. We demonstrate that with our bifacial design of PSC with utilizing of LTE is more efficient over a monofacial analog by 3.5%. Our current study presents a new important step in research of photovoltaic facilities aimed to involve PSCs in real industrial development.