Rapid Capillary‐Assisted Solution Printing of Perovskite Nanowire Arrays Enables Scalable Production of Photodetectors
Rapid Capillary‐Assisted Solution Printing of Perovskite Nanowire Arrays Enables Scalable Production of Photodetectors
复制标题
钙钛矿纳米线阵列的快速毛细管辅助溶液打印实现光电探测器的规模化生产
DOI：
10.1002/ange.202004912
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发表时间：
2020
影响因子：
--
通讯作者：
Peng, Juan
中科院分区：
文献类型：
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作者：
Pan, Shuang;Zou, Haiyang;Wang, Aurelia C.;Wang, Zewei;Yu, Jiwoo;Lan, Chuntao;Liu, Qiliang;Wang, Zhong Lin;Lian, Tianquan;Peng, Juan
尽管最近在生产用于光电子学的钙钛矿纳米线（NW）方面取得了进展，但溶液打印具有精确控制的位置和取向的NW阵列仍然具有挑战性。在本文中，我们报告了一种强大的毛细管辅助溶液打印（CASP）策略，以快速访问对齐和高度结晶的钙钛矿NW阵列。CASP方法的关键在于通过周期性纳米通道和通过可编程移动衬底的溶液印刷来集成毛细管导向组装，以快速引导钙钛矿纳米线的沉积。钙钛矿纳米线的生长动力学密切研究了原位光学显微镜。 有趣的是，印刷的钙钛矿纳米线阵列表现出优异的光学和光电特性，并且可以方便地实现光电探测器的可扩展制造。
Despite recent progress in producing perovskite nanowires (NWs) for optoelectronics, it remains challenging to solution‐print an array of NWs with precisely controlled position and orientation. Herein, we report a robust capillary‐assisted solution printing (CASP) strategy to rapidly access aligned and highly crystalline perovskite NW arrays. The key to the CASP approach lies in the integration of capillary‐directed assembly through periodic nanochannels and solution printing through the programmably moving substrate to rapidly guide the deposition of perovskite NWs. The growth kinetics of perovskite NWs was closely examined by in situ optical microscopy. Intriguingly, the as‐printed perovskite NWs array exhibit excellent optical and optoelectronic properties and can be conveniently implemented for the scalable fabrication of photodetectors.