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25 April 2024

» arxiv » 0912.5485

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30-Inch Roll-Based Production of High-Quality Graphene Films for Flexible Transparent Electrodes
Sukang Bae ; Hyeong Keun Kim ; Xianfang Xu ; Jayakumar Balakrishnan ; Tian Lei ; Young Il Song ; Young Jin Kim ; Barbaros Ozyilmaz ; Jong-Hyun Ahn ; Byung Hee Hong ; Sumio Iijima ;
Date:	30 Dec 2009
Abstract:	We report a chemical vapor deposition (CVD) synthesis of ultra-large area monolayer graphene films and roll-based layer-by-layer transfer onto flexible substrates. The monolayer shows the sheet resistance as small as ~125 Ohm/square with 97.4% optical transmittance and a unique half-integer quantum Hall effect indicating the high-quality of graphene films. The 30-inch scale multiple roll-to-roll transfer further enhance the electrical properties of the graphene films, resulting in ~40 Ohm/square sheet resistance and ~90 % transparency comparable to recent commercial transparent electrodes such as indium tin oxides (ITO).
Source:	arXiv, 0912.5485
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