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One-Step Solution Patterning for Two-Dimensional Perovskite Nanoplate Arrays
ACS Nano ( IF 15.8 ) Pub Date : 2023-07-11 , DOI: 10.1021/acsnano.3c03605
Yoon Ho Lee 1, 2 , Jee Yung Park 1 , Peiran Niu 1, 3 , Hanjun Yang 1, 2 , Dewei Sun 2 , Libai Huang 2 , Jianguo Mei 2 , Letian Dou 1
Affiliation  

Two-dimensional perovskite crystals have attracted significant attention for their diverse optoelectronic characteristics, owing to their superior semiconducting properties. However, the majority of studies to date have focused on single crystals, which pose challenges for integration into device arrays due to their incompatibility with selective growth or conventional lithography techniques. Here, a facile one-step solution process for synthesizing 2D perovskite crystal arrays is proposed through meniscus-guided coating on patterned substrates. We further utilized this method for the synthesis of lateral heterostructure nanoplate arrays. Six different 2D perovskite nanoplate arrays, including epitaxial heterostructures, are successfully realized. Optical and crystallographic characterizations show the high optical performance and crystallinity of the nanoplates. Moreover, this method is further employed to prepare high-performance 2D perovskite nanoplate photosensor arrays. This strategy can be utilized as a guideline for the fundamental investigation of optical properties and the development of high-performance optoelectronics of perovskite materials including photosensors and displays.

中文翻译:

二维钙钛矿纳米板阵列的一步解决方案图案化

二维钙钛矿晶体由于其优异的半导体特性而因其多样化的光电特性而引起了人们的广泛关注。然而,迄今为止的大多数研究都集中在单晶上,由于它们与选择性生长或传统光刻技术不兼容,因此对集成到器件阵列中提出了挑战。在这里,提出了一种通过在图案化基底上进行弯月面引导涂层来合成二维钙钛矿晶体阵列的简便的一步解决方法。我们进一步利用这种方法来合成横向异质结构纳米板阵列。成功实现了六种不同的二维钙钛矿纳米板阵列,包括外延异质结构。光学和晶体学表征显示了纳米板的高光学性能和结晶度。此外,该方法还进一步用于制备高性能2D钙钛矿纳米板光电传感器阵列。该策略可以作为光学性质的基础研究和钙钛矿材料高性能光电子学(包括光电传感器和显示器)开发的指南。
更新日期:2023-07-11
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