Modulated self-assembly of 4,4 '-diphenyltetrathiafulvalene molecules on highly oriented pyrolytic graphite by n-tetradecane solvent

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	Modulated self-assembly of 4,4 '-diphenyltetrathiafulvalene molecules on highly oriented pyrolytic graphite by n-tetradecane solvent
	Zhao, M ; Jiang, P ; Deng, K ; Xie, SS ; Ge, GL ; Jiang, C
刊名	NANOTECHNOLOGY
	2009
卷号	20 期号:42
关键词	SCANNING-TUNNELING-MICROSCOPY FIELD-EFFECT TRANSISTORS ALKANE DERIVATIVES THIN-FILMS INTERFACE PHTHALOCYANINE ADSORPTION CHEMISTRY SURFACES MOBILITY
ISSN号	0957-4484
通讯作者	Jiang, P: Natl Ctr Nanosci & Technol NCNST, Beijing 100190, Peoples R China.
中文摘要	We report the formation of a binary-component self-assembled monolayer (SAM) comprising 4,4'-diphenyltetrathiafulvalene (DP-TTF) and n-tetradecane (n-C(14)H(30)) molecules with periodic strip-like phase separation structures on a highly oriented pyrolytic graphite (HOPG) surface. Scanning tunneling microscopy (STM) imaging reveals that ordered DP-TTF single-and double-lamella are periodically tuned by ordered n-C(14)H(30) single-and double-lamella, respectively. This finding can be qualitatively understood in terms of a phase field model, in which the interplay of three ingredients, including free energy of the binary-component solution monolayer, phase boundary energy and surface stress, determines the final equilibrium sizes of the ordered DP-TTF and n-C(14)H(30) phases in the binary-component SAM. Furthermore, anisotropy of the surface stress breaks the symmetry of the substrate and causes the n-C(14)H(30) molecules to arrange along preferential substrate < 010 > directions. The orientation of the n-C(14)H(30) molecule stripes further guides the directions of the DP-TTF lamellar structures. In addition, scanning tunneling spectra (STS) of the individual DP-TTF and n-C(14)H(30) molecules in the ordered monolayer show a remarkable difference in I (V) curves on the HOPG substrate.
收录类别	SCI
资助信息	National Natural Science Foundation of China [50772024]; 'Hundred Talent Program' of the Chinese Academy of Sciences; Opening research foundation of the National Center for Nanoscience and Technology (NCNST), China; National Basic Research Program of China [2006CB932600, 2009CB930702]; major program for fundamental research of the Chinese Academy of Sciences, China [KJCX2-YW-M13]
语种	英语
公开日期	2013-09-18
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/42231]
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	Zhao, M,Jiang, P,Deng, K,et al. Modulated self-assembly of 4,4 '-diphenyltetrathiafulvalene molecules on highly oriented pyrolytic graphite by n-tetradecane solvent[J]. NANOTECHNOLOGY,2009,20(42).
APA	Zhao, M,Jiang, P,Deng, K,Xie, SS,Ge, GL,&Jiang, C.(2009).Modulated self-assembly of 4,4 '-diphenyltetrathiafulvalene molecules on highly oriented pyrolytic graphite by n-tetradecane solvent.NANOTECHNOLOGY,20(42).
MLA	Zhao, M,et al."Modulated self-assembly of 4,4 '-diphenyltetrathiafulvalene molecules on highly oriented pyrolytic graphite by n-tetradecane solvent".NANOTECHNOLOGY 20.42(2009).