title: Graphene-ferroelectric hybrid structure for flexible transparent electrodes.
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 × 10(13) cm(-2) by nonvolatile ferroelectric dipoles, yielding a low sheet resistance of 120 Ω/□ 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.
authors.affiliation: Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542.
authors.forename: Guang-Xin
authors.initials: GX
authors.lastname: Ni
authors.forename: Yi
authors.initials: Y
authors.lastname: Zheng
authors.forename: Sukang
authors.initials: S
authors.lastname: Bae
authors.forename: Chin Yaw
authors.initials: CY
authors.lastname: Tan
authors.forename: Orhan
authors.initials: O
authors.lastname: Kahya
authors.forename: Jing
authors.initials: J
authors.lastname: Wu
authors.forename: Byung Hee
authors.initials: BH
authors.lastname: Hong
authors.forename: Kui
authors.initials: K
authors.lastname: Yao
authors.forename: Barbaros
authors.initials: B
authors.lastname: Özyilmaz