SnPc Molecules on Surfaces Studied by Scanning Tunneling Microscopy

被引:0
作者
Ruoning Li
Tianhao Wu
Yifan Wang
Chenyang Yuan
Qiang Xue
Na Li
Shimin Hou
Yongfeng Wang
机构
[1] Peking University,Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics
[2] Beijing Academy of Quantum Information Sciences,undefined
来源
Journal of Cluster Science | 2019年 / 30卷
关键词
SnPc; High-density data storage; Molecular switch; Scanning tunneling microscopy;
D O I
暂无
中图分类号
学科分类号
摘要
Using single molecule as a basic unit of storage devices is an appealing direction of device miniaturization. Tin-phthalocyanine (SnPc) molecules exhibit bistable adsorption configurations, Sn-up and Sn-down. A reversible conversion between these two configurations is readily manipulated and probed by scanning tunneling microscopy (STM). When SnPc molecules are used to form functional devices, they need to adsorb on supporting surfaces. So the growth mechanisms of ultra-thin films on metal surfaces or buffer layers have been investigated. Both layer-island (Stranski–Krastanov) and three-dimensional-island (Volmer–Weber) growth modes are observed in experiments. Because of an electronic decoupling of buffer layers, electronic and vibronic states of SnPc molecules are spectroscopically identified. Molecular switches between Sn-up and Sn-down configurations are achieved by either an electrical mean or mechanical forces. When the STM tip contacts SnPc molecules with controlled structures, electrons transports through single-molecule junctions are explored in detail. In addition, Ag–SnPc–Ag junction exhibits three conductance states at different voltages. These researches pave a way for further development of high-density data storage devices.
引用
收藏
页码:1259 / 1266
页数:7
相关论文
共 50 条
[41]   Scanning Tunneling Microscopy Investigation of the Aggregation Phase Amphiphile Molecules [J].
Gai Zheng ;
Yang Weisheng ;
Zhou Weijing .
ACTA PHYSICO-CHIMICA SINICA, 1996, 12 (04) :302-309
[42]   Scanning tunneling microscopy of chemically cleaned germanium (100) surfaces [J].
Gan, S ;
Li, L ;
Nguyen, T ;
Qi, H ;
Hicks, RF ;
Yang, M .
SURFACE SCIENCE, 1998, 395 (01) :69-74
[43]   SCANNING-TUNNELING-MICROSCOPY ON QUENCHED SI(111) SURFACES [J].
TEUFEL, L ;
HEUELL, P ;
KULAKOV, MA ;
BULLEMER, B .
THIN SOLID FILMS, 1995, 264 (02) :236-239
[44]   SCANNING TUNNELING MICROSCOPY OF CUBIC SILICON-CARBIDE SURFACES [J].
CHANG, CS ;
ZHENG, NJ ;
TSONG, IST ;
WANG, YC ;
DAVIS, RF .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1990, 73 (11) :3264-3268
[45]   Morphology of sputtering damage on Cu(111) studied by scanning tunneling microscopy [J].
Naumann, J ;
Osing, J ;
Quinn, AJ ;
Shvets, IV .
SURFACE SCIENCE, 1997, 388 (1-3) :212-219
[46]   Elemental contrast of local work function studied by scanning tunneling microscopy [J].
Hasegawa, Y ;
Jia, JF ;
Inoue, K ;
Sakai, A ;
Sakurai, T .
SURFACE SCIENCE, 1997, 386 (1-3) :328-334
[47]   Adsorption of aspartic acid on Cu(001) studied by scanning tunneling microscopy [J].
Wang, H ;
Zhao, XY ;
Yang, WS .
ACTA PHYSICA SINICA, 2000, 49 (07) :1316-1320
[48]   Oxygen interactions with a Mo(001) surface studied by scanning tunneling microscopy [J].
Xu, H ;
Ng, KYS .
SURFACE SCIENCE, 1996, 356 (1-3) :19-27
[49]   Epitaxial growth of Fe on Mo(110) studied by scanning tunneling microscopy [J].
Malzbender, J ;
Przybylski, M ;
Giergiel, J ;
Kirschner, J .
SURFACE SCIENCE, 1998, 414 (1-2) :187-196
[50]   Plasma nitridation of Ge(100) surface studied by scanning tunneling microscopy [J].
Lee, Joon Sung ;
Bishop, Sarah R. ;
Grassman, Tyler J. ;
Kummel, Andrew C. .
SURFACE SCIENCE, 2010, 604 (15-16) :1239-1246