QQ客服 官方微博 反馈留言

	Single Molecule Conductance of Carboxylic Acids Contacting Ag and Cu Electrodes
	Peng, Zheng-Lian ; Chen, Zhao-Bin ; Zhou, Xiao-Yi ; Sun, Yan-Yan ; Liang, Jing-Hong ; Niu, Zheng-Jiang ; Zhou, Xiao-Shun ; Mao, Bing-Wei ; Mao BW(毛秉伟)
	2012-10-18
关键词	METAL WORK FUNCTION SCANNING TUNNELING MICROSCOPE ELECTROCHEMICAL GATE AU(111) ELECTRODE CHARGE-TRANSPORT CHARGE-TRANSPORT ANCHORING GROUPS IONIC LIQUID JUNCTIONS RESISTANCE SURFACE
英文摘要	In this work, the single molecule conductance of alkanedicarboxylic acid (HOOC-(CH2)(n)-COOH, n = 1-5) binding to Cu and Ag electrodes is systematically studied by using the electrochemical jump-to-contact scanning tunneling microscopy break junction approach (ECSTM-BJ). The results show that the conductance depends on molecular length and the electrode materials, which give a decay constant beta(N) of 0.95 +/- 0.02 per (-CH2) unit for Cu electrodes and 0.71 +/- 0.03 for Ag electrodes. The contact conductance shows the order of G(n=0,Cu) > G(n=0,Ag). These differences can be attributed to the different electronic coupling efficiencies between molecules and electrodes. The conductance of ultrashort molecular junctions is also studied using oxalic acid as the target molecule, the results revealing that the through-space mechanism (TS) should be considered when the distance between two electrodes is very short. The present work demonstrates that electrode materials play an important role on the molecular conductance, contact conductance, and also the tunneling decay constant.; NSFC [21003110, 21273204, 20973141, 20911130235]; Planned Science and Technology Project of Zhejiang Province [2011C37052]; Scientific Research Fund of Zhejiang Provincial Education Department [Y201016469]
语种	英语
出版者	AMER CHEMICAL SOC
内容类型	期刊论文
源URL	[http://dx.doi.org/10.1021/jp3069046]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Peng, Zheng-Lian,Chen, Zhao-Bin,Zhou, Xiao-Yi,et al. Single Molecule Conductance of Carboxylic Acids Contacting Ag and Cu Electrodes[J],2012.
APA	Peng, Zheng-Lian.,Chen, Zhao-Bin.,Zhou, Xiao-Yi.,Sun, Yan-Yan.,Liang, Jing-Hong.,...&毛秉伟.(2012).Single Molecule Conductance of Carboxylic Acids Contacting Ag and Cu Electrodes..
MLA	Peng, Zheng-Lian,et al."Single Molecule Conductance of Carboxylic Acids Contacting Ag and Cu Electrodes".(2012).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。