Cation optimization for perovskite solar devices

Hybrid lead halide perovskites will potentially lead the future energy scenario if highly efficient cells have long-term stability. Here we combine state-of-the art mixed-cation formulations containing formamidinium (FA) and methylammonium (MA), with optimal guanidinium (Gua)/Cs ratios, enabling the...

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Published inJournal of materials chemistry. A, Materials for energy and sustainability Vol. 9; no. 9; pp. 5374 - 538
Main Authors Paek, Sanghyun, Khan, Sher Bahadar, Franckevi ius, Marius, Gegevi ius, Rokas, Syzgantseva, Olga, Syzgantseva, Maria A, Kinche, Sachin, Asiri, Abdullah M, Roldán-Carmona, Cristina, Nazeeruddin, Mohammed Khaja
Format Journal Article
Published 09.03.2021
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Summary:Hybrid lead halide perovskites will potentially lead the future energy scenario if highly efficient cells have long-term stability. Here we combine state-of-the art mixed-cation formulations containing formamidinium (FA) and methylammonium (MA), with optimal guanidinium (Gua)/Cs ratios, enabling the realization of cells providing stability at their maximum efficiency. The photovoltaic stability of nonencapsulated cells containing Cs x (FAMAGua) 1− x ( x = 0.1; x = 0.2; x = 0.3) stored in the dark under air conditions for 4000 h (a), and devices under continuous light soaking at MPP tracking (b).
Bibliography:10.1039/d1ta00472g
Electronic supplementary information (ESI) available. See DOI
ISSN:2050-7488
2050-7496
DOI:10.1039/d1ta00472g