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Study on the Stability of Ammonium Iodide‐Based Mixed‐Dimensional Perovskite Solar Cells under Different Humidity (Solar RRL 2∕2019)
Author(s) -
Zheng Haiying,
Liu Guozhen,
Xu Xiaoxiao,
Xu Shendong,
Zhang Xianxi,
Zhang Changneng,
Hayat Tasawar,
Pan Xu
Publication year - 2019
Publication title -
solar rrl
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.544
H-Index - 37
ISSN - 2367-198X
DOI - 10.1002/solr.201970023
Subject(s) - perovskite (structure) , humidity , iodide , materials science , relative humidity , moisture , ammonium , ammonium iodide , photovoltaic system , phase (matter) , chemical engineering , chemistry , composite material , meteorology , inorganic chemistry , electrical engineering , physics , organic chemistry , engineering
Through analyzing aging performance changes of high humidity stable [(NH 4 ) 2.4 (FA) 8 Pb 9 I 28.4 ] 0.85 (MAPbBr 3 ) 0.15 mixed‐dimensional perovskite, Xu Pan and co‐workers speculate and verify the possible mechanism of its high moisture resistance in article no. 1800276 . After cation exchange of NH 4 + and FA + , NH 4 PbX 3 (H 2 O) 2 and two‐dimensional protective layers are formed on the surface to resist water immersion, and the δ‐phase FAPbI 3 transforms into α‐phase under continuous illumination to maintain the photovoltaic performance.