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A General Wet Transferring Approach for Diffusion-Facilitated Space-Confined Grown Perovskite Single-Crystalline Optoelectronic Thin Films
Nano Letters ( IF 10.8 ) Pub Date : 2020-03-18 , DOI: 10.1021/acs.nanolett.0c00379
Ran Ding 1 , Chun-Ki Liu 1 , Zehan Wu 1 , Feng Guo 1 , Sin-Yi Pang 1 , Lok Wing Wong 1 , Weng Fu Io 1 , Shuoguo Yuan 1 , Man-Chung Wong 1 , Michal Bartlomiej Jedrzejczyk 1 , Jiong Zhao 1 , Feng Yan 1 , Jianhua Hao 1
Affiliation  

Hybrid perovskite single-crystalline thin films are promising for making high-performance perovskite optoelectronic devices due to their superior physical properties. However, it is still challenging to incorporate them into multilayer devices because of their on-substrate growth. Here, a wet transfer method is used in transferring perovskite single-crystalline films perfectly onto various target substrates. More importantly, large millimeter-scaled single-crystalline films can be obtained via a diffusion-facilitated space-confined growth method as thin as a few hundred nanometers, which are capable of sustaining excellent crystalline quality and morphology after the transferring process. The availability of these crystalline films offers us a convenient route to further investigate their intrinsic properties of hybrid perovskites. We also demonstrate that the wet transfer method can be used for scalable fabrication of perovskite single-crystalline film-based photodetectors exhibiting a remarkable photoresponsivity. It is expected that this transferring strategy would promise broad applications of perovskite single-crystalline films for more complex perovskite devices.

中文翻译:

扩散促进空间受限的生长钙钛矿单晶光电薄膜的通用湿传递方法

混合钙钛矿单晶薄膜由于其优越的物理性能,有望用于制造高性能钙钛矿光电器件。然而,由于它们在衬底上的生长,将它们结合到多层器件中仍然是挑战。在此,使用湿转移法将钙钛矿单晶膜完美地转移到各种目标基板上。更重要的是,可以通过扩散促进的空间限制的生长方法获得几毫米厚的大毫米级单晶膜,该方法薄至几百纳米,在转移过程之后能够保持优异的晶体质量和形态。这些结晶膜的可用性为我们进一步研究杂化钙钛矿的内在特性提供了便利的途径。我们还证明了湿转移方法可用于钙钛矿单晶膜基光电探测器的可扩展制造,该光电探测器表现出显着的光响应性。预期该转移策略将有望将钙钛矿单晶膜广泛应用于更复杂的钙钛矿器件。
更新日期:2020-04-24
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