Low-temperature scanning tunneling microscopy study of double-decker DyPc2 on Pb Surface

doi:10.1039/c4nr02863e

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	Low-temperature scanning tunneling microscopy study of double-decker DyPc2 on Pb Surface
	He, Yang 1; Zhang, Yajie 1; Hong, I-Po 2; Cheng, Fang 1; Zhou, Xiong 1; Shen, Qian 1; Li, Jianlong 1; Wang, Yongfeng 2; Jiang, Jianzhuang 3; Wu, Kai 1
刊名	NANOSCALE
	2014
卷号	6 期号:18 页码:10779-10783
ISSN号	2040-3364
DOI	10.1039/c4nr02863e
英文摘要	Low-temperature scanning tunneling microscopy (STM), scanning tunneling spectroscopy and dI/dV mapping techniques have been applied to study double-decker DyPc2 molecules on Pb(111) films grown on silicon wafers. The DyPc2 molecules firstly self-assemble into a monolayer where two neighbouring molecules form an azimuthal angle of 6 degrees. Scattered DyPc2 molecules in the second layer can be stabilized on top of the first self-assembled monolayer, adopting a co-axial alignment with the underlying molecules. With the reference to the new layer assembled by Pc molecules generated by the cracking of DyPc2 molecules on the substrate at or above room temperature, the molecular configuration can be directly deduced from STM imaging. The two Pc ligands in the same double-decker molecule rotate 45 degrees with respect to each other. The dI/dV mapping of the individual DyPc2 molecules in the second layer shows that they can appear as either four-lobed or eight-lobed features in the STM images depending on the bias voltage employed.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000341020700047
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/53047]
专题	中国科学院化学研究所
通讯作者	Wang, Yongfeng
作者单位	1.Peking Univ, BNLMS, SKLSCUSS, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Peking Univ, Key Lab Phys & Chem Nanodevices, Dept Elect, Beijing 100871, Peoples R China 3.Beijing Univ Sci & Technol, Dept Chem, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	He, Yang,Zhang, Yajie,Hong, I-Po,et al. Low-temperature scanning tunneling microscopy study of double-decker DyPc2 on Pb Surface[J]. NANOSCALE,2014,6(18):10779-10783.
APA	He, Yang.,Zhang, Yajie.,Hong, I-Po.,Cheng, Fang.,Zhou, Xiong.,...&Wu, Kai.(2014).Low-temperature scanning tunneling microscopy study of double-decker DyPc2 on Pb Surface.NANOSCALE,6(18),10779-10783.
MLA	He, Yang,et al."Low-temperature scanning tunneling microscopy study of double-decker DyPc2 on Pb Surface".NANOSCALE 6.18(2014):10779-10783.