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Improvement of Wrinkles in Roll-to-Roll Microwave Plasma CVD Graphene

Published online by Cambridge University Press:  16 July 2015

Takatoshi Yamada ,
Nayuta Shimada ,
Kazuki Uekusa  and
Masataka Hasegawa
Takatoshi Yamada*
Affiliation:
National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba 305-8565, Japan. Technology Research Association for Single Wall Carbon Nanotube (TASC), 1-1-1 Higashi, Tsukuba 305-8565, Japan.
Nayuta Shimada
Affiliation:
Technology Research Association for Single Wall Carbon Nanotube (TASC), 1-1-1 Higashi, Tsukuba 305-8565, Japan.
Kazuki Uekusa
Affiliation:
Technology Research Association for Single Wall Carbon Nanotube (TASC), 1-1-1 Higashi, Tsukuba 305-8565, Japan.
Masataka Hasegawa
Affiliation:
National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba 305-8565, Japan. Technology Research Association for Single Wall Carbon Nanotube (TASC), 1-1-1 Higashi, Tsukuba 305-8565, Japan.
*
a[email protected]
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Abstract

Wrinkle-less graphene films are obtained through roll-to-roll microwave plasma chemical vapor deposition by using flexible copper/polyimide (Cu/PI) webs. Raman spectra suggests that the average domain size of the obtained graphene on the flexible Cu/PI is almost the same compared to the graphene on a Cu web that includes wrinkles. Also, by utilizing the flexible Cu/PI webs, the compressive strains decreased. The sheet resistances of graphene deposited on the Cu/PI are (1∼5)×104Ω, which is two orders of magnitude lower than those of graphene deposited on the Cu webs. Our results suggest that the controlling the expansion of web material an important technology to improve graphene transparent conductive properties.

Keywords

plasma-enhanced CVD (PECVD) (deposition)transparent conductorC
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1761: Symposium ZZ – Hierarchical, High-Rate, Hybrid and Roll-to-Roll Manufacturing , 2015 , mrsf14-1761-zz06-07
Copyright
Copyright © Materials Research Society 2015 

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References

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