论文标题
量化电荷载体的迁移率和金属卤化物钙钛矿中的重组率，该载体通过时间分辨微波光电传导性测量
Quantifying Charge Carrier Mobilities and Recombination Rates in Metal Halide Perovskites from Time-Resolved Microwave Photo-conductivity Measurements
论文作者
论文摘要
基于金属卤化物钙钛矿（MHP），太阳能电池的功率转化效率的前所未有的提高导致了巨大的研究工作，以了解其光物理特性。在本文中，我们回顾了使用无电瞬态光电导率技术监测的光产生的电荷载体从纳秒到微秒时间尺度的迁移率和重组的进展。此外，我们提出了一个动力学模型，以从使用多种激光强度记录的瞬态数据中获得速率常数。对于各种MHP，评估了迁移率和重组率的温度依赖性。此外，我们展示了如何使用这些速率常数来预测相应设备的开路电压VOC的上限。最后，我们讨论尚未完全理解的MHP的光物理特性，并为将来的研究方向提出建议。
The unprecedented rise in power conversion efficiency of solar cells based on metal halide perovskites (MHPs) has led to enormous research effort to understand their photo-physical properties. In this paper, we review the progress in understanding the mobility and recombination of photo-generated charge carriers from nanosecond to microsecond time scales, monitored using electrodeless transient photoconductivity techniques. In addition, we present a kinetic model to obtain rate constants from transient data recorded using a wide range of laser intensities. For various MHPs the temperature dependence of the mobilities and recombination rates are evaluated. Furthermore, we show how these rate constants can be used to predict the upper limit for the open-circuit voltage Voc of the corresponding device. Finally, we discuss photo-physical properties of MHPs that are not yet fully understood, and make recommendations for future research directions.
