Catalytic chemical vapor deposition of methane on graphite to produce graphene structures

被引：21

作者：

Kholmanov, I. N. ^{[1
,2
]}

Cavaliere, E. ^{[1
]}

Cepek, C. ^{[3
]}

Gavioli, L. ^{[1
,3
]}

机构：

[1] Univ Cattolica Sacro Cuore, Dipartimento Matemat & Fis, IT-25121 Brescia, Italy

[2] CNR INFM SENSOR Lab, I-25133 Brescia, Italy

[3] Lab Nazl TASC CNR INFM, IT-34012 Basovizza, TS, Italy

来源：

CARBON | 2010年 / 48卷 / 05期

关键词：

SCANNING-TUNNELING-MICROSCOPY; CARBON NANOTUBES; LARGE-AREA; SUBSTRATE; GROWTH; SINGLE; LAYERS; FILMS; HOPG;

D O I：

10.1016/j.carbon.2009.12.064

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Graphene structures, obtained by catalytic chemical vapor deposition of methane on highly oriented pyrolitic graphite (HOPG), were examined using scanning tunneling microscopy Depending on the Fe catalyst coverage and localization on the substrate steps and terraces, different graphene structures were obtained. curved graphene sheets at the edges of topmost stacked graphene bilayers, laterally grown terraces at the edges of individual graphene layers parallel to the HOPG basal plane and planar graphene islands on the terraces A growth mechanism is proposed that takes into account the specific features of the spatial distribution of Fe catalytic nanoparticles on the substrate surface, driven by metal film-substrate interaction The present synthesis approach is promising for the controlled growth and modification of graphene layers, as well as for engineering the edge characteristics of graphene systems at the atomic scales (C) 2010 Elsevier Ltd All rights reserved

引用

页码：1619 / 1625

页数：7

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