Ionic liquid based approach for single-molecule electronics with cobalt contacts

CORC > 厦门大学 > 化学化工－已发表论文

	Ionic liquid based approach for single-molecule electronics with cobalt contacts
	Catarelli, Samantha R. ; Higgins, Simon J. ; Schwarzacher, Walther ; Mao, Bing-Wei ; Yan, Jia-Wei ; Nichols, Richard J. ; Mao BW(毛秉伟) ; Yan JW(颜佳伟)
刊名	http://dx.doi.org/10.1021/la503077c
	2014
关键词	Cobalt Electrolytic reduction Infrared spectroscopy Ionic liquids Molecules Oxide films Scanning tunneling microscopy Self assembly Tunnel junctions
英文摘要	An electrochemical method is presented for fabricating cobalt thin films for single-molecule electrical transport measurements. These films are electroplated in an aqueous electrolyte, but the crucial stages of electrochemical reduction to remove surface oxide and adsorption of alkane(di)thiol target molecules under electrochemical control to form self-assembled monolayers which protect the oxide-free cobalt surface are carried out in an ionic liquid. This approach yields monolayers on Co that are of comparable quality to those formed on Au by standard self-assembly protocols, as assessed by electrochemical methods and surface infrared spectroscopy. Using an adapted scanning tunneling microscopy (STM) method, we have determined the single-molecule conductance of cobalt/1,8-octanedithiol/cobalt junctions by employing a monolayer on cobalt and a cobalt STM tip in an ionic liquid environment and have compared the results with those of experiments using gold electrodes as a control. These cobalt substrates could therefore have future application in organic spintronic devices such as magnetic tunnel junctions.
语种	英语
出版者	American Chemical Society
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/89659]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Catarelli, Samantha R.,Higgins, Simon J.,Schwarzacher, Walther,et al. Ionic liquid based approach for single-molecule electronics with cobalt contacts[J]. http://dx.doi.org/10.1021/la503077c,2014.
APA	Catarelli, Samantha R..,Higgins, Simon J..,Schwarzacher, Walther.,Mao, Bing-Wei.,Yan, Jia-Wei.,...&颜佳伟.(2014).Ionic liquid based approach for single-molecule electronics with cobalt contacts.http://dx.doi.org/10.1021/la503077c.
MLA	Catarelli, Samantha R.,et al."Ionic liquid based approach for single-molecule electronics with cobalt contacts".http://dx.doi.org/10.1021/la503077c (2014).