NDLI: Assembly of iron phthalocyanine and pentacene molecules on a graphene monolayer grown on Ru(0001)

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Assembly of iron phthalocyanine and pentacene molecules on a graphene monolayer grown on Ru(0001)

Content Provider	Semantic Scholar
Author	Zhang, Haigang Sun, Jia-Tao Low, Tony Zhang, Li-Zhi Liu, Qing-Hua Mao, Jinhai Zhou, Haitao Guo, Haiming Du, Shixuan Guinea, Francisco Gao, Hongjun
Copyright Year	2011
Abstract	Anisotropic triangular graphene monolayers grown on a Ru(0001) surface represent unique two-dimensional templates for creating ordered, large-scale assembly of functional molecules. Using scanning tunneling microscopy and spectroscopy, we demonstrate the selective adsorption and the formation of ordered molecular arrays of iron phthalocyanine and pentacene molecules of different structural symmetries on the graphene/Ru(0001) templates. With in-depth investigations of the molecular adsorption and assembly processes, we reveal the existence of site-specific, lateral electric dipoles (or lateral electric fields) in the epitaxial graphene monolayers and the capability of the dipoles in directing and driving the molecular adsorption and assembly. We show that the lateral dipoles originate from the inhomogeneous distribution of charge due to the epitaxial constraint of graphene on a Ru(0001) surface. The adsorption mechanism is rather general and applicable to similar molecular systems on graphene monolayers formed on other transition metal surfaces.
Starting Page	245436
Ending Page	245436
Page Count	1
File Format	PDF HTM / HTML
DOI	10.1103/PhysRevB.84.245436
Volume Number	84
Alternate Webpage(s)	http://www.ece.umn.edu/groups/tlow/Publications_files/PhysRevB.84.245436.pdf
Alternate Webpage(s)	http://absimage.aps.org/image/MAR11/MWS_MAR11-2010-005136.pdf
Alternate Webpage(s)	http://people.ece.umn.edu/groups/tlow/Publications_files/PhysRevB.84.245436.pdf
Alternate Webpage(s)	http://nano.iphy.ac.cn/N04/papers/NO4_papers%20all%20pdf/PRB84(2011)245436-N04.pdf
Alternate Webpage(s)	https://doi.org/10.1103/PhysRevB.84.245436
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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