Tuning Structural and Mechanical Properties of Two-Dimensional Molecular Crystals: The Roles of Carbon Side Chains

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	Tuning Structural and Mechanical Properties of Two-Dimensional Molecular Crystals: The Roles of Carbon Side Chains
	Cun, HY ; Wang, YL ; Du, SX ; Zhang, L ; Zhang, LZ ; Yang, B ; He, XB ; Wang, Y ; Zhu, XY ; Yuan, QZ ; Zhao, YP ; Ouyang, M ; Hofer, WA ; Pennycook, SJ ; Gao, HJ
刊名	NANO LETTERS
	2012
卷号	12 期号:3 页码:1229
关键词	QUINACRIDONE DERIVATIVES SURFACES ELECTRONICS NETWORKS SOLIDS
ISSN号	1530-6984
通讯作者	Wang, YL (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	Uniform, millimeter-long SiO2 nanowires were grown from co-evaporation of Ag2O and SiO powders. The 'frozen' growth scenario by cooling enables revelation of the vapor-liquid-solid mechanism here in action, which is generally inaccessible due to the high temperature and high pressure condition. Ag core/SiO2 shell preformed in the vapor and wetting the substrate will expose its liquid Ag-core to catalyze nanowire growth, at a rate over 10 nm/s, via viscous flow of the encasing SiO2 layer which precipitates through a liquid neck zone. This method is characteristic of high-yield of catalytic seeds free from overgrowth or consuming, easy control of wire thickness by vapor pressure adjustment, enhanced rooting ability since catalyst deposition on substrate becomes dispensable, etc. Also spinning growth of nanowires observed in many other circumstances can be explained by the viscous flow mechanism. Copyright 2012 Author( s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. [http://dx.doi.org/10.1063/1.3700232]
收录类别	SCI
资助信息	NSFC; MOST; CAS; SSC in China; U.S. National Science Foundation; Royal Society London; U.S. Dept. of Energy, Office of Science, Materials Sciences and Engineering Division
语种	英语
公开日期	2013-09-23
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/46192]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Cun, HY,Wang, YL,Du, SX,et al. Tuning Structural and Mechanical Properties of Two-Dimensional Molecular Crystals: The Roles of Carbon Side Chains[J]. NANO LETTERS,2012,12(3):1229.
APA	Cun, HY.,Wang, YL.,Du, SX.,Zhang, L.,Zhang, LZ.,...&Gao, HJ.(2012).Tuning Structural and Mechanical Properties of Two-Dimensional Molecular Crystals: The Roles of Carbon Side Chains.NANO LETTERS,12(3),1229.
MLA	Cun, HY,et al."Tuning Structural and Mechanical Properties of Two-Dimensional Molecular Crystals: The Roles of Carbon Side Chains".NANO LETTERS 12.3(2012):1229.