The influence of transfer parameters on the final structure, morphology
and electrical properties of graphene were investigated in this work.
Optical microscopy and atomic force microscopy (AFM) images showed that
a double layer of PMMA can enhance or degrade graphene quality depending
on its concentration. When properly diluted (15% in anisole, resulting
in a PMMA layer of 1.35%) the transfer technique using double layer
PMMA produces high quality graphene with fewer PMMA residues,
non-cracked surface and sheet resistance around 247 ohm/square. We also
investigated the influence of different baking times and temperature,
and observed that the increase in baking time can degrade graphene
quality thus leaving higher amounts of PMMA residues. Several works
regarding graphene transfer are reported in the literature, but
PMMA-based transfer processes still present challenges in yielding a
clean and high quality graphene. (C) 2014 Elsevier Ltd. All rights
reserved.
%0 Journal Article
%1 WOS:000348955500010
%A Barin, Gabriela Bonin
%A Song, Yi
%A de Gimenez, Iara Fatima
%A Filho, Antonio Gomes Souza
%A Barretto, Ledjane Silva
%A Kong, Jing
%C THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
%D 2015
%I PERGAMON-ELSEVIER SCIENCE LTD
%J CARBON
%K imported
%P 82-90
%R 10.1016/j.carbon.2014.11.040
%T Optimized graphene transfer: Influence of polymethylmethacrylate (PMMA)
layer concentration and baking time on graphene final performance
%V 84
%X The influence of transfer parameters on the final structure, morphology
and electrical properties of graphene were investigated in this work.
Optical microscopy and atomic force microscopy (AFM) images showed that
a double layer of PMMA can enhance or degrade graphene quality depending
on its concentration. When properly diluted (15% in anisole, resulting
in a PMMA layer of 1.35%) the transfer technique using double layer
PMMA produces high quality graphene with fewer PMMA residues,
non-cracked surface and sheet resistance around 247 ohm/square. We also
investigated the influence of different baking times and temperature,
and observed that the increase in baking time can degrade graphene
quality thus leaving higher amounts of PMMA residues. Several works
regarding graphene transfer are reported in the literature, but
PMMA-based transfer processes still present challenges in yielding a
clean and high quality graphene. (C) 2014 Elsevier Ltd. All rights
reserved.
@article{WOS:000348955500010,
abstract = {The influence of transfer parameters on the final structure, morphology
and electrical properties of graphene were investigated in this work.
Optical microscopy and atomic force microscopy (AFM) images showed that
a double layer of PMMA can enhance or degrade graphene quality depending
on its concentration. When properly diluted (15% in anisole, resulting
in a PMMA layer of 1.35%) the transfer technique using double layer
PMMA produces high quality graphene with fewer PMMA residues,
non-cracked surface and sheet resistance around 247 ohm/square. We also
investigated the influence of different baking times and temperature,
and observed that the increase in baking time can degrade graphene
quality thus leaving higher amounts of PMMA residues. Several works
regarding graphene transfer are reported in the literature, but
PMMA-based transfer processes still present challenges in yielding a
clean and high quality graphene. (C) 2014 Elsevier Ltd. All rights
reserved.},
added-at = {2022-05-23T20:00:14.000+0200},
address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND},
author = {Barin, Gabriela Bonin and Song, Yi and de Gimenez, Iara Fatima and Filho, Antonio Gomes Souza and Barretto, Ledjane Silva and Kong, Jing},
biburl = {https://www.bibsonomy.org/bibtex/2da72b957827ff3f27386ae2c9763f57c/ppgfis_ufc_br},
doi = {10.1016/j.carbon.2014.11.040},
interhash = {5bbfffb418bf0bf27c6225c28f830922},
intrahash = {da72b957827ff3f27386ae2c9763f57c},
issn = {0008-6223},
journal = {CARBON},
keywords = {imported},
pages = {82-90},
publisher = {PERGAMON-ELSEVIER SCIENCE LTD},
pubstate = {published},
timestamp = {2022-05-23T20:00:14.000+0200},
title = {Optimized graphene transfer: Influence of polymethylmethacrylate (PMMA)
layer concentration and baking time on graphene final performance},
tppubtype = {article},
volume = 84,
year = 2015
}