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Large Area Graphene on Polymer Films for Transparent and Flexible Field Emission Device

Published online by Cambridge University Press:  01 June 2011

Ved Prakash Verma
Affiliation:
Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174, U.S.A.
Santanu Das
Affiliation:
Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174, U.S.A.
Indranil Lahiri
Affiliation:
Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174, U.S.A.
WonBong Choi
Affiliation:
Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174, U.S.A.
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Abstract

Large scale fabrication of graphene over transparent flexible polymer, Polyethelyne tetrapthalate (PET), and its application in flexible field emission display is reported here. We used Cu foil (~160 mm x 60 mm) to grow graphene by thermal chemical vapor deposition process and transfer the graphene over a polymer using a straightforward hot press lamination technique. The fabrication method is facile as there is no rigorous chemical process involved and the process is also applicable towards the fabrication of large scale graphene over a wide range of transparent flexible substrates for foldable micro-electronics applications. Further, we demonstrate the application of graphene/PET polymer film as anode of transparent flexible field emission display device. The device shows low turn-on voltage ~ 1.75V/μm and high current density of ~ 65μA/cm2 with field enhancement factor (β) ~1000.

Type
Research Article
Copyright
Copyright © Materials Research Society 2011

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References

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