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Growth and properties of chemically modified graphene

Authors
Park, Hye JinSkakalova, VieraMeyer, JannikLee, Dong SuIwasaki, TakayukiBumby, ChrisKaiser, UteRoth, Siegmar
Issue Date
12월-2010
Publisher
WILEY-V C H VERLAG GMBH
Keywords
chemical structure; chemical vapour deposition; graphene; nitrogen substituted graphene
Citation
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, v.247, no.11-12, pp.2915 - 2919
Indexed
SCIE
SCOPUS
Journal Title
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume
247
Number
11-12
Start Page
2915
End Page
2919
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/115184
DOI
10.1002/pssb.201000818
ISSN
0370-1972
Abstract
Chemically modified graphene was synthesized by chemical vapour deposition (CVD) with ammonia gas introduced during the CVD process. The use of two different metal catalyst films [nickel (Ni) or copper (Cu)] results in distinctly different forms of structural defects in the honeycomb lattice of graphene under identical synthesis conditions. The Ni catalyst film gave rise to numerous "flower-like" defects, where carbon atoms formed core hexagons surrounded by pentagons alternated with heptagons, whilst graphene grown on a Cu catalyst film contained a much higher concentration of substituted nitrogen atoms. The samples were characterized by a variety of spectroscopic and microscopic methods complemented with electrical transport measurements. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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