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Title: The Line Speed Effect in Roll-to-Roll Dry Transfer of Chemical Vapor Deposition Graphene,
A roll-to-roll (R2R) technique is especially desirable for transfer of chemical vapor deposition (CVD) graphene towards high-speed, low-cost, renewable, and environmentally friendly manufacturing of graphene-based electronic devices, such as flexible touchscreens, field effect transistors and organic solar cells. A R2R graphene dry transfer system is recently developed. Monolayer graphene is transferred from a copper growth substrate to a polymer backing layer by mechanical peeling. In this work, we present an experimental study to examine the effects of line speed of the mechanical peeling process on the transferred graphene quality. It is shown that the effect of line speed is not monotonic, and an optimal speed exists to yield the highest and most consistent electrical conductivity of transferred graphene among the process conditions studied. This study provides understanding of process parameter effects and demonstrates the potential of the R2R dry transfer process for large-scale CVD graphene toward industrial applications.  more » « less
Award ID(s):
Author(s) / Creator(s):
Sreenivasan, S.V.
Date Published:
Journal Name:
2021 International Conference on Micro- and Nano-devices Enabled by R2R Manufacturing
Medium: X
Sponsoring Org:
National Science Foundation
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  2. Abstract

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