Abstract Preparing organometal halide perovskite array thin films from solution is a big challenge due to its soluble nature. In this work, we provide a fast chemical vapor-solid reaction (FCVR) for fabricating perovskite array thin films. An elemental Pb array thin film was firstly prepared by magnetron sputtering using a shadow mask, which then converted to CH3NH3PbI3 arrays by reacting with CH3NH3I. The related photoelectric characteristics were investigated by Uv–Vis spectroscopy, photoluminescence spectroscopy, and transient photovoltage analysis. The photodetector devices were assembled using these resultant perovskite thin films, which showed a fast response with 3 ms rise time and 3 ms decay time both under 405 nm and 660 nm light illumination. The response was faster than the commercial photodetector. This FCVR method not only provides a high quality perovskite array thin film, but also a novel synthesis strategy for new organic-inorganic hybrid perovskite photoelectric materials.

中文翻译：

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用于合成用于光电探测器应用的有机金属卤化物钙钛矿阵列薄膜的快速化学汽固反应

摘要 由于其可溶性，从溶液中制备有机金属卤化物钙钛矿阵列薄膜是一个很大的挑战。在这项工作中，我们提供了一种用于制造钙钛矿阵列薄膜的快速化学汽固反应（FCVR）。首先使用荫罩通过磁控溅射制备元素铅阵列薄膜，然后通过与 CH3NH3I 反应转化为 CH3NH3PbI3 阵列。通过紫外-可见光谱、光致发光光谱和瞬态光电压分析研究了相关的光电特性。使用这些合成的钙钛矿薄膜组装光电探测器器件，在 405 nm 和 660 nm 光照射下显示出快速响应，上升时间为 3 ms，衰减时间为 3 ms。响应速度比商用光电探测器快。