Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/48267

TitleEasy process to obtain suspended graphene flakes on TEM grids
Author(s)Gonçalves, Hugo Manuel Castro
Fernandes, Joel
Moura, C.
Schellenberg, Peter Michael
Belsley, M.
Alves, Luís Miguel Fonte
KeywordsSuspended graphene monolayers
TEM grids
Raman spectroscopy
Issue date30-Apr-2015
PublisherIOP Publishing
JournalMaterials Research Express
Abstract(s)Much of the ongoing research on graphene requires free-hanging (suspended) graphene to eliminate any influence from underlying substrates. Several methods have been developed for its preparation but they are either very complex or not completely reliable. Here, we describe a simple method for the transfer of graphene single layers from glass or silicon substrates onto TEM grids. The method uses a carrier film for the transfer process. By optimizing the process yields greater than 60% were achieved. The integrity of the transferred films was confirmed using Raman spectroscopy; successful suspension of both mono- and double-layer graphene sheets was obtained.
TypeArticle
URIhttp://hdl.handle.net/1822/48267
DOI10.1088/2053-1591/2/5/055602
ISSN2053-1591
e-ISSN2053-1591
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:CDF - FAMO - Artigos/Papers (with refereeing)

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