Organic–inorganic halide perovskite (OHP) materials have attracted remarkable attention for the great promise of optoelectronic applications. Unfortunately, hysteresis in the current–voltage response links to the stability and reliability assessment of OHP photovoltaic device that must be addressed. Here, light‐induced antipolar resistive switching (RS) effect is demonstrated in an individual MAPbI₃ micro‐/nanofiber–based two‐terminal device after aging for 4 d. The antipolar RS is attributed to reversible electrochemical reactions in the vicinity of Ag electrode, where Ag serves as the work electrode and MAPbI₃ acts as the solid electrolyte. That makes conductive behavior of antipolar RS similar with cyclic voltammetry curves of capacitances. Concomitantly, the antipolar RS shows slow dissipation kinetics, which is employed to realize the application of nonvolatile memories. This work establishes the potential for the versatile solid state devices that can efficiently couple interface reaction, charge migration, and photoelectrical effects in an individual micro‐/nanodevice.

中文翻译：

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基于单个有机-无机卤化物钙钛矿微/纳米纤维的光诱导异常电阻开关

有机-无机卤化物钙钛矿（OHP）材料因光电子应用的巨大前景而引起了人们的极大关注。不幸的是，电流-电压响应中的滞后关系到必须解决的OHP光伏设备的稳定性和可靠性评估。在此，老化4 d后，在单个基于MAPbI ₃的基于微纤维/纳米纤维的两端子设备中证明了光诱导的反极性电阻切换（RS）效应。抗极性RS归因于Ag电极附近的可逆电化学反应，其中Ag用作工作电极，而MAPbI ₃充当固体电解质。这使得反极性RS的导电行为与电容的循环伏安曲线相似。伴随地，反极性RS显示出缓慢的耗散动力学，这被用于实现非易失性存储器的应用。这项工作为多功能固态器件建立了潜力，该固态器件可以在单个微型/纳米器件中有效地耦合界面反应，电荷迁移和光电效应。