Scanning Tunneling Microscopy Study and Nanomanipulation of Graphene-Coated Water on Mica

被引：108
作者：
He, Kevin T. [1 ,3 ]
Wood, Joshua D. [1 ,2 ,3 ]
Doidge, Gregory P. [1 ,2 ,3 ]
Pop, Eric [1 ,2 ,3 ]
Lyding, Joseph W. [1 ,3 ]
机构：
[1] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA
[2] Univ Illinois, Micro & Nanotechnol Lab, Urbana, IL 61801 USA
[3] Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA
来源：
NANO LETTERS | 2012年 / 12卷 / 06期
关键词：
Graphene; water; mica; scanning probe microscopy; atomic resolution; STM; Raman; WALLED CARBON NANOTUBES; RAMAN-SPECTROSCOPY; SURFACES; ICE; HYDRATION; TRANSPARENCY; EXCITATION; MOLECULES; SUBSTRATE; MEMBRANES;
D O I：
10.1021/nl202613t
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We study interfacial water trapped between a sheet of graphene and a muscovite (mica) surface using Raman spectroscopy and ultrahigh vacuum scanning tunneling microscopy (UHV-STM) at room temperature. We are able to image the graphene-water interface with atomic resolution, revealing a layered network of water trapped underneath the graphene. We identify water layer numbers with a carbon nanotube height reference. Under normal scanning conditions, the water structures remain stable. However, at greater electron energies, we are able to locally manipulate the water using the STM tip.
引用
收藏
页码：2665 / 2672
页数：8
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