Direct observation of spreading precursor liquids in a corner

doi:10.1093/nsr/nwad119

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Direct observation of spreading precursor liquids in a corner
	Miao, Weining ; Tian SH(田诗豪); Yuan QZ(袁泉子); Tian, Ye ; Jiang, Lei
刊名	NATIONAL SCIENCE REVIEW
	2023-05
页码	nwad119
关键词	precursor liquid spreading spatial-temporal characteristic direct observation corner ionic liquids
ISSN号	2095-5138
DOI	10.1093/nsr/nwad119
英文摘要	Precursor liquid is a nanoscale liquid creeping ahead of the macroscopic edge of spreading liquids, whose behaviors tightly correlate with the three-phase reaction efficiency and patterning accuracy. However, the important spatial-temporal characteristic of the precursor liquid still remains obscure because its real-time spreading process has not been directly observed. Here, we report that the spreading ionic liquid precursors in a silicon corner can be directly captured on video using in situ scanning electron microscopy. In situ spreading videos show that the precursor liquid spreads linearly over time (Delta L similar to Delta T) rather than obeying the classic Lucas-Washburn law (l similar to t(1/2)) and possesses a characteristic width of similar to 250-310 nm. Theoretical analyses and molecular dynamics simulations demonstrate that the unique behaviors of precursor liquids originate from the competing effect of van der Waals force and surface energy. These findings provide avenues for directly observing liquid/solid interfacial phenomena on a microscopic level.
分类号	一类
WOS研究方向	WOS:000998371500001
语种	英语
资助机构	National Natural Science Foundation of China [21988102, 21972154, 22090052, 12072346] ; Frontier Science Key Projects of Chinese Academy of Sciences [ZDBS-LY-SLH022] ; China National Postdoctoral Program for Innovative Talents [BX20220312]
其他责任者	Tian, Y ; Jiang, L ; Yuan, QZ
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92276]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.(Tian Shihao, Yuan Quanzi) Univ Chinese Acad Sci Sch Engn Sci Beijing Peoples R China 2.(Miao Weining, Tian Ye, Jiang Lei) Chinese Acad Sci Inst Mech State Key Lab Nonlinear Mech Beijing Peoples R China 3.(Tian Shihao, Yuan Quanzi) Univ Chinese Acad Sci Sch Future Technol Beijing Peoples R China 4.(Miao Weining, Tian Ye, Jiang Lei) Chinese Acad Sci Tech Inst Phys & Chem Key Lab Bioinspired Smart Interfacial Sci Beijing Peoples R China
推荐引用方式 GB/T 7714	Miao, Weining,Tian SH,Yuan QZ,et al. Direct observation of spreading precursor liquids in a corner[J]. NATIONAL SCIENCE REVIEW,2023:nwad119.
APA	Miao, Weining,田诗豪,袁泉子,Tian, Ye,&Jiang, Lei.(2023).Direct observation of spreading precursor liquids in a corner.NATIONAL SCIENCE REVIEW,nwad119.
MLA	Miao, Weining,et al."Direct observation of spreading precursor liquids in a corner".NATIONAL SCIENCE REVIEW (2023):nwad119.