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Ultra-smooth glassy graphene thin films for flexible transparent circuits

Dai, X; Wu, J; Qian, Z; Wang, H; Jian, J; Cao, Y; Rummeli, MH; ... Zou, G; + view all (2016) Ultra-smooth glassy graphene thin films for flexible transparent circuits. Science Advances , 2 (11) , Article e1601574. 10.1126/sciadv.1601574. Green open access

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Abstract

Large-area graphene thin films are prized in flexible and transparent devices. We report on a type of glassy graphene that is in an intermediate state between glassy carbon and graphene and that has high crystallinity but curly lattice planes. A polymer-assisted approach is introduced to grow an ultra-smooth (roughness, <0.7 nm) glassy graphene thin film at the inch scale. Owing to the advantages inherited by the glassy graphene thin film from graphene and glassy carbon, the glassy graphene thin film exhibits conductivity, transparency, and flexibility comparable to those of graphene, as well as glassy carbon–like mechanical and chemical stability. Moreover, glassy graphene–based circuits are fabricated using a laser direct writing approach. The circuits are transferred to flexible substrates and are shown to perform reliably. The glassy graphene thin film should stimulate the application of flexible transparent conductive materials in integrated circuits.

Type: Article
Title: Ultra-smooth glassy graphene thin films for flexible transparent circuits
Open access status: An open access version is available from UCL Discovery
DOI: 10.1126/sciadv.1601574
Publisher version: http://dx.doi.org/10.1126/sciadv.1601574
Language: English
Additional information: Copyright © 2016, The Authors This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
Keywords: Flexible, transparent, conducting, graphene, glassy graphene, ultra-smooth, laser direct writing
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1531200
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