论文标题
甲基铵铅碘化物的有机和无机子晶格的含有碘化物的杂种有机无机钙钛矿单晶之间的电子耦合
Electronic Coupling between the Unoccupied States of the Organic and Inorganic Sub-Lattices of Methylammonium Lead Iodide a Hybrid Organic-Inorganic Perovskite Single Crystal
论文作者
论文摘要
由于其应用，有机无机卤化物钙钛矿已被深入重新研究，但是有机阳离子的光电功能尚不清楚。通过有机选择性共振螺旋螺旋仪电子光谱测量在明确定义的单晶表面上，我们找到了在原型杂种钙钛矿的有机和无机子层之间在未占用状态下进行电子耦合的证据，这与先前的研究相反，这是基于概念，表明有机阳离子是有机阳性的。该耦合与材料中的电子动力学有关，并了解光电功能。
Organic-inorganic halide perovskites have been intensively re-investigated due to their applications, yet the opto-electronic function of the organic cation remains unclear. Through organic-selective resonant Auger electron spectroscopy measurements on well-defined single crystal surfaces, we find evidence for electronic coupling in the unoccupied states between the organic and inorganic sub-lattices of the prototypical hybrid perovskite, which is contrary to the notion based on previous studies that the organic cation is electronically inert. The coupling is relevant for electron dynamics in the material and for understanding opto-electronic functionality.
