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Paraffin-enabled graphene transfer

Author(s)
Leong, Wei Sun; Wang, Haozhe; Yeo, Jingjie; Martin-Martinez, Francisco J.; Zubair, Ahmad; Shen, Pin-Chun; Mao, Yunwei; Palacios, Tomas; Buehler, Markus J; Hong, Jin-Yong; Kong, Jing; ... Show more Show less
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Abstract
The performance and reliability of large-area graphene grown by chemical vapor deposition are often limited by the presence of wrinkles and the transfer-process-induced polymer residue. Here, we report a transfer approach using paraffin as a support layer, whose thermal properties, low chemical reactivity and non-covalent affinity to graphene enable transfer of wrinkle-reduced and clean large-area graphene. The paraffin-transferred graphene has smooth morphology and high electrical reliability with uniform sheet resistance with ~1% deviation over a centimeter-scale area. Electronic devices fabricated on such smooth graphene exhibit electrical performance approaching that of intrinsic graphene with small Dirac points and high carrier mobility (hole mobility = 14,215 cm 2 V −1 s −1 ; electron mobility = 7438 cm 2 V −1 s −1 ), without the need of further annealing treatment. The paraffin-enabled transfer process could open realms for the development of high-performance ubiquitous electronics based on large-area two-dimensional materials.
Date issued
2019-02
URI
https://hdl.handle.net/1721.1/121425
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Journal
Nature Communications
Publisher
Nature Publishing Group
Citation
Leong, Wei Sun, Haozhe Wang, Jingjie Yeo, Francisco J. Martin-Martinez, Ahmad Zubair, Pin-Chun Shen, Yunwei Mao, Tomas Palacios, Markus J. Buehler, Jin-Yong Hong & Jing Kong. "Paraffin-enabled graphene transfer." Nature Communications 10:1 (2019):867.
Version: Final published version
ISSN
2041-1723

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