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首页> 外文期刊>Advanced energy materials >Imaging Carrier Transport Properties in Halide Perovskites using Time-Resolved Optical Microscopy
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Imaging Carrier Transport Properties in Halide Perovskites using Time-Resolved Optical Microscopy

机译：使用时间分辨光学显微镜进行卤化物蠕动中的成像载流性质

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Abstract Halide perovskites have remarkable properties for relatively crudely processed semiconductors, including large optical absorption coefficients and long charge carrier lifetimes. Thanks to such properties, these materials are now competing with established technologies for use in cost‐effective and efficient light‐harvesting and light‐emitting devices. Nevertheless, the fundamental understanding of the behavior of charge carriers in these materials—particularly on the nano‐ to microscale—has, on the whole, lagged behind empirical device performance. Such understanding is essential to control charge carriers, exploit new device structures, and push devices to their performance limits. Among other tools, optical microscopy and spectroscopic techniques have revealed rich information about charge carrier recombination and transport on important length scales. In this progress report, the contribution of time‐resolved optical microscopy techniques to the collective understanding of the photophysics of these materials is detailed. The ongoing technical developments in the field that are overcoming traditional experimental limitations in order to visualize transport properties over multiple time and length scales are discussed. Finally, strategies are proposed to combine optical microscopy with complementary techniques in order to obtain a holistic picture of local carrier photophysics in state‐of‐the‐art perovskite devices.
机译：抽象卤化卤素钙质具有相对粗糙的加工半导体的显着性质，包括大的光学吸收系数和长电荷载体寿命。由于此类属性，这些材料目前正在竞争成熟的技术，用于具有成本效益和高效的光收获和发光器件。尽管如此，对这些材料中的电荷载体行为的根本理解 - 特别是在整体上落后于纳米微观的落后于经验装置的性能。这种理解对于控制电荷载波，利用新设备结构和将设备推送到其性能限制至关重要。在其他工具中，光学显微镜和光谱技术已经揭示了有关电荷载体重组和在重要的长度尺度上运输的丰富信息。在这一进展报告中，详细说明了时间分辨光学显微镜技术对这些材料的光学物理学的集体理解的贡献。讨论了克服了传统实验限制的领域的正在进行的技术开发，以便在多个时间和长度尺度上可视化传输特性。最后，提出了用互补技术将光学显微镜结合的策略，以便在最先进的Perovskite器件中获得本地载体光学学学的整体图像。

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