Spreading- and evaporation-mediated 2D colloidal assemblies on fluid interfaces

doi:10.1016/j.surfin.2024.103897

	Spreading- and evaporation-mediated 2D colloidal assemblies on fluid interfaces
	Zhang, Chen 1,2; Li, Weibin 1,2; Lan, Ding 1,2; Wang, Yuren 1,2
刊名	SURFACES AND INTERFACES
	2024-02-01
卷号	45 页码:7
关键词	Spreading and wetting Fluid interface Self-assembly Droplet evaporation Colloidal crystals
ISSN号	2468-0230
DOI	10.1016/j.surfin.2024.103897
通讯作者	Li, Weibin(liweibin@imech.ac.cn) ; Wang, Yuren(yurenwang@imech.ac.cn)
英文摘要	Fluid interfaces exhibit remarkable capabilities and significant application prospects in fabricating twodimensional (2D) materials and colloidal assemblies. However, the efficient realization of the fluid-mediated self-assembly of colloidal particles has become challenging owing to the complex evolution of spatiotemporal processes and dynamic behaviors at fluid interfaces. In this study, we hypothesized that the superspreading of a volatile droplet directed the ultrafast self-assembly of colloidal particles on an insoluble fluid interface. To validate this hypothesis, employing high-speed and large-field microscopic observation experiments in tandem with theoretical analysis, the time evolution processes of droplet spreading, evaporation, dewetting, and particle assembly were captured, and the multi-scale dynamic behavior of volatile colloidal droplets on an immiscible liquid substrate was studied. Our findings revealed the power law of droplet spreading dynamics at the macroscale, evaporation-induced dewetting of the liquid film and aggregation of colloidal particles at the mesoscopic scale, and colloidal self-assembly under the action of capillary and DLVO forces at the microscopic scale. Moreover, we realized the ultrafast fabrication of 2D colloidal assemblies on liquid interfaces. This work presents a simple, robust, and efficient method for self-assembling and manufacturing 2D-ordered structures and materials based on a platform of fluid interfaces.
资助项目	National Natural Science Foundation of China[12272390] ; Key research programme of Chinese Academy of Sciences[ZDBS-ZRKJZ-TLC014]
WOS关键词	FABRICATION ; MONOLAYERS ; CRYSTALS ; DROPLETS ; CELLS ; FILMS ; ARRAY
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
WOS记录号	WOS:001167874100001
资助机构	National Natural Science Foundation of China ; Key research programme of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/94561]
专题	力学研究所_国家微重力实验室
通讯作者	Li, Weibin; Wang, Yuren
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Chen,Li, Weibin,Lan, Ding,et al. Spreading- and evaporation-mediated 2D colloidal assemblies on fluid interfaces[J]. SURFACES AND INTERFACES,2024,45:7.
APA	Zhang, Chen,Li, Weibin,Lan, Ding,&Wang, Yuren.(2024).Spreading- and evaporation-mediated 2D colloidal assemblies on fluid interfaces.SURFACES AND INTERFACES,45,7.
MLA	Zhang, Chen,et al."Spreading- and evaporation-mediated 2D colloidal assemblies on fluid interfaces".SURFACES AND INTERFACES 45(2024):7.