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Graphene-Ferroelectric Hybrid Structure for Flexible Transparent Electrodes

Cited 140 time in Web of Science Cited 148 time in Scopus
Authors
Ni, Guang-Xin; Zheng, Yi; Bae, Sukang; Tan, Chin Yaw; Kahya, Orhan; Wu, Jing; Hong, Byung Hee; Yao, Kui; Oezyilmaz, Barbaros
Issue Date
2012-05
Citation
ACS Nano, Vol.6 No.5, pp.3935-3942
Keywords
CVD grapheneferroelectric polymer gatingsheet resistancehigh transparencymechanical flexibilitycharged impurity scattering
Abstract
Graphene has exceptional optical, mechanical, and electrical properties, making it an emerging material for novel optoelectronics, photonics, and flexible transparent electrode applications. However, the relatively high sheet resistance of graphene is a major constraint for many of these applications. Here we propose a new approach to achieve low sheet resistance in large-scale CVD monolayer graphene using nonvolatile ferroelectric polymer gating. In this hybrid structure, large-scale graphene is heavily doped up to 3 x 10(13) cm(-2) by nonvolatile ferroelectric dipoles, yielding a low sheet resistance of 120 Omega/square at ambient conditions. The graphene-ferroelectric transparent conductors (GFeTCs) exhibit more than 95% transmittance from the visible to the near-infrared range owing to the highly transparent nature of the ferroelectric polymer. Together with its excellent mechanical flexibility, chemical inertness, and the simple fabrication process of ferroelectric polymers, the proposed GFeTCs represent a new route toward large-scale graphene-based transparent electrodes and optoelectronics.
ISSN
1936-0851
URI
https://hdl.handle.net/10371/172121
DOI
https://doi.org/10.1021/nn3010137
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College of Natural Sciences (자연과학대학)Dept. of Chemistry (화학부)Journal Papers (저널논문_화학부)
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