期刊
NANO LETTERS
卷 20, 期 8, 页码 5997-6004出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.0c02005
关键词
assembly; emulsion-droplet templating; supercrystals; perovskite films; stability
类别
资金
- Dutch Technology Foundation STW
- Netherlands Organization for Scientific Research (NWO)
- Joint Solar Program (JSP III) of The NWO [680-91-011]
Inorganic perovskites display an enticing foreground for their wide range of optoelectronic applications. Recently, supercrystals (SCs) of inorganic perovskite nanocrystals (NCs) have been reported to possess highly ordered structure as well as novel collective optical properties, opening new opportunities for efficient films. Here, we report the large-scale assembly control of spherical, cubic, and hexagonal SCs of inorganic perovskite NCs through templating by oil-in-oil emulsions. We show that an interplay between the roundness of the cubic NCs and the tension of the confining droplet surface sets the superstructure morphology, and we exploit this interplay to design dense hyperlattices of SCs. The SC films show strongly enhanced stability for at least two months without obvious structural degradation and minor optical changes. Our results on the controlled large-scale assembly of perovskite NC superstructures provide new prospects for the bottom-up production of optoelectronic devices based on the microfluidic production of mesoscopic building blocks.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据