Two-dimensional ordering of pentafluorobenzenethiol self-assembled monolayers on Au(111) prepared by ambient-pressure vapor deposition

被引：9
作者：
Kang, Hungu [1 ]
Kim, Youyoung [1 ]
Hara, Masahiko [2 ,3 ]
Noh, Jaegeun [1 ]
机构：
[1] Hanyang Univ, Dept Chem, Seoul 133791, South Korea
[2] RIKEN, Flucto Order Funct Asian Collaborat Team, Wako, Saitama 3510198, Japan
[3] Tokyo Inst Technol, Dept Elect Chem, Interdisciplinary Grad Sch Sci & Engn, Midori Ku, Yokohama, Kanagawa 2268502, Japan
来源：
ULTRAMICROSCOPY | 2010年 / 110卷 / 06期
关键词：
Pentafluorobenzenethiol; Self-assembled monolayers; Scanning tunneling microscopy; Structural order; Vapor phase deposition; INJECTION; MOLECULES; DENSITY; GROWTH;
D O I：
10.1016/j.ultramic.2010.02.029
中图分类号：
TH742 [显微镜];
学科分类号：
摘要：
Formation and surface structures of pentafluorobenzenethiol (PFBT) self-assembled monolayers (SAMs) on Au(1 1 1) prepared by ambient-vapor phase deposition were examined by means of scanning tunneling microscopy (STM) as a function of deposition temperature. PFBT SAMs formed at room temperature have disordered phases with bright aggregated domains, which are very similar to benzenethiol SAMs. As deposition temperature increases to 50 degrees C, partially ordered domains and large aggregated domains appeared. High-resolution STM clearly revealed that PFBT SAMs formed at 75 degrees C were composed of long-range, two-dimensional (2D) ordered domains, which can be described as a c(2 x root 3) structure. The results of this study clearly demonstrate that deposition temperature is a crucial factor for obtaining PFBT SAMs on Au(1 1 1) with a high degree of structural order. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：666 / 669
页数：4
相关论文
共 28 条
[1]  
Asadi K., 2009, ADV MATER, V21, P1
[2]   Electron energetics at surfaces and interfaces: Concepts and experiments [J].
Cahen, D ;
Kahn, A .
ADVANCED MATERIALS, 2003, 15 (04) :271-277
[3]   Formation of ordered self-assembled monolayers by adsorption of octylthiocyanates on Au(111) [J].
Choi, Youngsik ;
Jeong, Youngdo ;
Chung, Hoeil ;
Ito, Eisuke ;
Hara, Masahiko ;
Noh, Jaegeun .
LANGMUIR, 2008, 24 (01) :91-96
[4]   Tuning of metal work functions with self-assembled monolayers [J].
de Boer, B ;
Hadipour, A ;
Mandoc, MM ;
van Woudenbergh, T ;
Blom, PWM .
ADVANCED MATERIALS, 2005, 17 (05) :621-+
[5]   Ambient-pressure vapor deposition of octanethiol self-assembled monolayers [J].
Deering, AL ;
Van Lue, SM ;
Kandel, SA .
LANGMUIR, 2005, 21 (23) :10260-10263
[6]   Controlling charge injection in organic field-effect transistors using self-assembled monolayers [J].
Hamadani, B. H. ;
Corley, D. A. ;
Ciszek, J. W. ;
Tour, J. M. ;
Natelson, D. .
NANO LETTERS, 2006, 6 (06) :1303-1306
[7]   Tuning of Ag work functions by self-assembled monolayers of aromatic thiols for an efficient hole injection for solution processed triisopropylsilylethynyl pentacene organic thin film transistors [J].
Hong, Jung-Pyo ;
Park, Aee-Young ;
Lee, Seonghoon ;
Kang, Jihoon ;
Shin, Nayool ;
Yoon, Do Y. .
APPLIED PHYSICS LETTERS, 2008, 92 (14)
[8]  
Ishii H, 1999, ADV MATER, V11, P605, DOI 10.1002/(SICI)1521-4095(199906)11:8<605::AID-ADMA605>3.0.CO
[9]  
2-Q
[10]   Control of two-dimensional structure of tolanethioacetate self-assembled monolayers on Au(111) [J].
Jeong, Youngdo ;
Chung, Hoeil ;
Noh, Jaegeun .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2008, 313 :608-611
123