Simultaneous CVD synthesis of graphene-diamond hybrid films
authors Carvalho, AF; Holz, T; Santos, NF; Ferro, MC; Martins, MA; Fernandes, AJS; Silva, RF; Costa, FM
nationality International
journal CARBON
keywords RAMAN-SPECTROSCOPY; LAYER GRAPHENE; CARBON; TRANSISTORS; NANOTUBES; DEFECTS; CU
abstract An innovation is reported in the synthesis of a hybrid carbon structure resulting from the simultaneous growth of graphene and nanocrystalline diamond (NCD) by the microwave plasma chemical vapor deposition technique. This strategy allows to take advantage of the complementary electronic behavior of each carbon allotrope, a key feature in new nanostructured materials for electronics under the graphene/insulator all-carbon approach. The graphene-diamond hybrid structures were grown on copper and transferred to a glass substrate to be further characterized. Raman analysis puts in evidence the signature of both phases and the high crystallinity of the graphene layer, based on band intensity and width measurements. Raman mapping and SEM observations show a uniform distribution of the NCD clusters, confirmed by AFM/EFM measurements. Additionally, HRTEM analysis permitted to detail the diamond nanocrystalline structure, revealing a close link to the graphene layer on the basis of which a diamond on graphene nucleation mechanism is proposed. (C) 2015 Elsevier Ltd. All rights reserved.
publisher PERGAMON-ELSEVIER SCIENCE LTD
issn Aug-23
year published 2016
volume 98
beginning page 99
ending page 105
digital object identifier (doi) 10.1016/j.carbon.2015.10.095
web of science category Chemistry, Physical; Materials Science, Multidisciplinary
subject category Chemistry; Materials Science
unique article identifier WOS:000367233000013
  ciceco authors
  impact metrics
times cited (wos core): 5
journal impact factor (jcr 2016): 6.337
5 year journal impact factor (jcr 2016): 6.834
category normalized journal impact factor percentile (jcr 2016): 86.514
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