Efficient All Vacuum Deposited Perovskite Solar Cells in Substrate Configuration
Abhyuday Paliwal a, Henk Bolink a
a Universidad de Valencia - ICMol (Institute of Molecular Science), Catedrático José Beltrán Martinez 2, Paterna, Spain
International Conference on Hybrid and Organic Photovoltaics
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV22)
València, Spain, 2022 May 19th - 25th
Organizers: Pablo Docampo, Eva Unger and Elizabeth Gibson
Oral, Abhyuday Paliwal, presentation 168
DOI: https://doi.org/10.29363/nanoge.hopv.2022.168
Publication date: 20th April 2022

Lead halide perovskite solar cells (PSCs) have rapidly advanced over a short time period, achieving power conversion. efficiencies (PCE) above 25% and enhanced stability for single-junction solar cells. These devices, however, are fabricated in superstrate-configuration over transparent conducting electrodes which are adequate for fabricating small area cells, but not for large-area cells that are employed in modules due to resistive losses. This limitation can be overcome by fabricating PSCs in substrate-configuration on highly conductive and reflective metal films. Further, the absence of ‘glass’ in the path of light upon illumination, in this case, could be leveraged to minimize optical losses in the device and achieve high current densities. To this end, in this work, we demonstrate efficient, all vacuum processed PSCs in substrate configuration. The devices fabricated in substrate-configuration do not bear additional losses relative to the reference cells in superstrate-configuration. These results may contribute towards the advancement of scalable fabrication of perovskite solar cells and modules.

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