用于混合层状狄翁-雅各布森钙钛矿的芳烃-全氟芳烃π体系中的纳米相分离
Nanosegregation in arene-perfluoroarene π-systems for hybrid layered Dion-Jacobson perovskites.
作者信息
Almalki Masaud, Dučinskas Algirdas, Carbone Loï C, Pfeifer Lukas, Piveteau Laura, Luo Weifan, Lim Ethan, Gaina Patricia A, Schouwink Pascal A, Zakeeruddin Shaik M, Milić Jovana V, Grätzel Michael
机构信息
Laboratory of Photonics and Interfaces, Institute of Chemistry and Chemical Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.
Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany.
出版信息
Nanoscale. 2022 May 16;14(18):6771-6776. doi: 10.1039/d1nr08311b.
Layered hybrid perovskites are based on organic spacers separating hybrid perovskite slabs. We employ arene and perfluoroarene moieties based on 1,4-phenylenedimethylammonium (PDMA) and its perfluorinated analogue (F-PDMA) in the assembly of hybrid layered Dion-Jacobson perovskite phases. The resulting materials are investigated by X-ray diffraction, UV-vis absorption, photoluminescence, and solid-state NMR spectroscopy to demonstrate the formation of layered perovskite phases. Moreover, their behaviour was probed in humid environments to reveal nanoscale segregation of layered perovskite species based on PDMA and F-PDMA components, along with enhanced stabilities of perfluoroarene systems, which is relevant to their application.
层状杂化钙钛矿基于分隔杂化钙钛矿板的有机间隔物。我们在杂化层状狄翁-雅各布森钙钛矿相的组装中采用基于1,4-苯二甲铵（PDMA）及其全氟类似物（F-PDMA）的芳烃和全氟芳烃部分。通过X射线衍射、紫外-可见吸收、光致发光和固态核磁共振光谱对所得材料进行研究，以证明层状钙钛矿相的形成。此外，还在潮湿环境中探究了它们的行为，以揭示基于PDMA和F-PDMA组分的层状钙钛矿物种的纳米级偏析，以及全氟芳烃体系增强的稳定性，这与其应用相关。
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