标题： 金属卤化物钙钛矿中光诱导电荷载流子的动力学 显示英文标题

标题： Dynamics of Photoinduced Charge Carriers in Metal-Halide Perovskites

摘要： 电荷载流子寿命（tauc）的测量和描述对于铅卤化物钙钛矿的广泛应用至关重要。 我们进行了时间分辨微波检测光电导衰减（TRMCD）测量，并对可能的复合机制进行了详细分析，包括陷阱辅助复合、辐射复合和俄歇复合。 我们证明了进行依赖注入的测量在确定复合机制中是至关重要的。 我们在CsPbBr_3中进行了温度和注入水平相关的测量，这是一种无机铅卤化物钙钛矿。 在这种材料中，我们观察到电荷载流子捕获占主导地位，这导致了超长的电荷载流子寿命。 尽管电荷捕获可能会限制材料在光伏应用中的有效性，但它也为各种替代用途提供了显著的优势，包括延迟和持续的光电探测、电荷陷阱存储、余辉发光二极管、量子信息存储和光催化活性。 显示英文摘要

摘要： The measurement and description of the charge-carrier lifetime (tauc) is crucial for the wide-ranging applications of lead-halide perovskites. We present time-resolved microwave-detected photoconductivity decay (TRMCD) measurements and a detailed analysis of the possible recombination mechanisms including trap-assisted, radiative, and Auger recombination. We prove that performing injection-dependent measurement is crucial in identifying the recombination mechanism. We present temperature and injection level dependent measurements in CsPbBr_3, which is an inorganic lead-halide perovskite. In this material, we observe the dominance of charge-carrier trapping, which results in ultra-long charge-carrier lifetimes. Although charge trapping can limit the effectiveness of materials in photovoltaic applications, it also offers significant advantages for various alternative uses, including delayed and persistent photodetection, charge-trap memory, afterglow light-emitting diodes, quantum information storage, and photocatalytic activity.