Proceedings of Perovskite Thin Film Photovoltaics (ABXPV17)
Publication date: 18th December 2016
Reproducible Hybrid Halide Perovskites Solar Cells with High Efficiencies Fabricated in Ambient Conditions by Solvent and Additives Engineering
Clara Aranda1*, C. Cristóbal2, Antonio Guerrero1, Juan Bisquert1
1 Institute of Advanced Materials (INAM), Universitat Jaume I, 12006 Castelló, Spain
2 Universidad Nacional de Ingeniería, Lima, Perú
Photovoltaic devices based on lead halide perovskites solar cells, have erupted as strong candidates to compete with already commercially available technologies. Significant efforts have been devoted towards the achievement of high efficiencies leading to 20.9 %, using methylammonium lead triiodide perovskites. Solvent engineering has proved as a key to obtain increased crystallinity of the perovskite layer.1 In this work the coordination ability of different solvents such as DMF, DMSO or GBL is systematically studied.2 It is shown that the coordination ability of the solvent plays a very important role. By controlling the coordination chemistry we show that highly efficient perovskites solar cells can be fabricated (18.6 %) in ambient conditions. This work demonstrates that efficient perovskite materials may be produced even in the absence of an inert atmosphere.
References:
1. Namyoung Ahn, Dae-Yong Son, In-Hyuk Jang, Seong Min Kang, Mansoo Choi and Nam-Gyu Park, Journal of the American Chemical Society, 2015, 137, 8696−8699
2. Sara Rahimnejad, Alexander Kovalenko, Sergio Martí Forés, Clara Aranda and Antonio Guerrero, ChemPhysChem, 2016, DOI: 10.1002/cphc.201600575
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