Graphene鈥揊erroelectric Hybrid Structure for Flexible Transparent Electrodes
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- 作者：Guang-Xin Ni ; Yi Zheng ; Sukang Bae ; Chin Yaw Tan ; Orhan Kahya ; Jing Wu ; Byung Hee Hong ; Kui Yao ; Barbaros 脰zyilmaz
- 刊名：ACS Nano
- 出版年：2012
- 出版时间：May 22, 2012
- 年：2012
- 卷：6
- 期：5
- 页码：3935-3942
- 全文大小：556K
- 年卷期：v.6,no.5(May 22, 2012)
- ISSN：1936-086X
文摘
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 脳 1013 cm鈥? by nonvolatile ferroelectric dipoles, yielding a low sheet resistance of 120 惟/鈻?at ambient conditions. The graphene鈥揻erroelectric 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.