In situ X-ray scattering observation of two-dimensional interfacial colloidal crystallization

doi:10.1038/s41467-018-03767-y

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	In situ X-ray scattering observation of two-dimensional interfacial colloidal crystallization
	Wu, LL ; Wang, X ; Wang, G ; Chen, G
	2018
发表期刊	NATURE COMMUNICATIONS
ISSN	2041-1723
卷号	9 页码:-
文章类型	期刊论文
摘要	Charged colloids at interfaces hold such a simple configuration that their interactions are supposed to be fully elucidated in the framework of classical electrostatics, yet the mysterious existence of attractive forces between these like-charged particles has puzzled the scientific community for decades. Here, we perform the in situ grazing-incidence small-angle X-ray scattering study of the dynamic self-assembling process of two-dimensional interfacial colloids. This approach allows simultaneous monitoring of the in-plane structure and ordering and the out-of-plane immersion depth variation. Upon compression, the system undergoes multiple metastable intermediate states before the stable hexagonal close-packed monolayer forms under van der Waals attraction. Remarkably, the immersion depth of colloidal particles is found to increase as the interparticle distance decreases. Numerical simulations demonstrate the interface around a colloid is deformed by the electrostatic force from its neighboring particles, which induces the long-range capillary attraction.
关键词	Charged Particles Liquid Interfaces Electric-field Attraction Crystals
DOI	10.1038/s41467-018-03767-y
收录类别	SCI
语种	英语
WOS记录号	WOS:000429399900008
引用统计
文献类型	期刊论文
条目标识符	http://ir.sinap.ac.cn/handle/331007/29047
专题	中科院上海应用物理研究所2011-2018年
作者单位	1.Wu, LL 2.Wang, X 3.Wang, G 4.Chen, G
推荐引用方式 GB/T 7714	Wu, LL,Wang, X,Wang, G,et al. In situ X-ray scattering observation of two-dimensional interfacial colloidal crystallization[J]. NATURE COMMUNICATIONS,2018,9:-.
APA	Wu, LL,Wang, X,Wang, G,&Chen, G.(2018).In situ X-ray scattering observation of two-dimensional interfacial colloidal crystallization.NATURE COMMUNICATIONS,9,-.
MLA	Wu, LL,et al."In situ X-ray scattering observation of two-dimensional interfacial colloidal crystallization".NATURE COMMUNICATIONS 9(2018):-.

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