Véron Anna C, Linden Anthony, Leclaire Nicolas A, Roedern Elsa, Hu Shunbo, Ren Wei, Rentsch Daniel, Nüesch Frank A
Empa, Swiss Federal Laboratories for Materials Science and Technology , CH-8600 Dübendorf , Switzerland.
Department of Chemistry , University of Zurich , CH-8057 Zurich , Switzerland.
J Phys Chem Lett. 2018 May 3;9(9):2438-2442. doi: 10.1021/acs.jpclett.8b00458. Epub 2018 Apr 25.
Hybrid perovskite crystals with organic and inorganic structural components are able to combine desirable properties from both classes of materials. Electronic interactions between the anionic inorganic framework and functional organic cations (such as chromophores or semiconductors) can give rise to unusual photophysical properties. Cyanine dyes are a well known class of cationic organic dyes with high extinction coefficients and tunable absorption maxima all over the visible and near-infrared spectrum. Here we present the synthesis and characterization of an original 1D hybrid perovskite composed of NIR-absorbing cyanine cations and polyanionic lead halide chains. This first demonstration of a cyanine-perovskite hybrid material is paving the way to a new class of compounds with great potential for applications in photonic devices.
具有有机和无机结构成分的杂化钙钛矿晶体能够结合这两类材料的理想特性。阴离子无机骨架与功能性有机阳离子（如发色团或半导体）之间的电子相互作用可产生异常的光物理性质。花菁染料是一类著名的阳离子有机染料，在整个可见光和近红外光谱范围内具有高消光系数和可调吸收最大值。在此，我们展示了一种由吸收近红外光的花菁阳离子和多阴离子卤化铅链组成的新型一维杂化钙钛矿的合成与表征。这种花菁-钙钛矿杂化材料的首次展示为一类在光子器件中具有巨大应用潜力的新型化合物铺平了道路。
