In a first aspect, the present invention relates to a perovskite material comprising negatively charged layers alternated with and neutralized by positively charged layers; the negatively charged layers having a general formula selected from the list consisting of: Ln-1 MnX3n+1, LnMnX3n+2, and Ln-1M'nX3n+3, and the positively charged layers comprising: - one or more organic ammonium cations independently selected from monovalent cations Q and divalent cations Q', or - a polyvalent cationic conjugated organic polymer Z, wherein Q, Q' and Z comprise each a ττ-conjugated system in which at least 8 and preferably at least 10 atoms participate, L is a monovalent cation, Mn are n independently selected metal cations averaging a valence of two, M'n are n independently selected metal cations averaging a valence equal to 2 + 2/n, X is a monovalent anion, and n is larger than 1.
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机译：在第一方面，本发明涉及一种钙钛矿材料，其包括与带正电的层交替并被其中和的带负电的层。具有以下通式的带负电层：L n -1 M n X3 n +1 ，L n M < Sub> n X 3 n +2 和L n -1 M' n X 3 n +3 ，且带正电的层包括：-一个或多个独立地选自单价阳离子Q和二价阳离子Q'的有机铵阳离子，或-多价阳离子共轭有机聚合物Z，其中Q，Q'和Z各自构成一个ττ共轭体系，其中至少8个原子，优选至少10个原子参与，L为单价阳离子，M 是n个平均价为2的独立选择的金属阳离子，M' n 是n个平均价为2 + 2 / n的独立选择的金属阳离子，X是一价阴离子，而< I> n 大于1。
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