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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Veröffentlicht in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2021-03, Vol.9 (9), p.5374-538
Hauptverfasser: 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
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container_end_page 538
container_issue 9
container_start_page 5374
container_title Journal of materials chemistry. A, Materials for energy and sustainability
container_volume 9
creator 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
description 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).
doi_str_mv 10.1039/d1ta00472g
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title Cation optimization for perovskite solar devices
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