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Roll-to-roll laser-printed graphene-graphitic carbon electrodes for high-performance supercapacitors

Cited 8 time in Web of Science Cited 7 time in Scopus
Authors
Kang, Sangmin; Lim, Kyungmi; Park, Hyeokjun; Park, Jong Bo; Park, Seong Chae; Cho, Sung-Pyo; Kang, Kisuk; Hong, Byung Hee
Issue Date
2018-01
Citation
ACS Applied Materials and Interfaces, Vol.10 No.1, pp.1033-1038
Keywords
laser printertonergraphene graphitic carbonroll-to-rollsupercapacitors
Abstract
Carbon electrodes including graphene and thin graphite films have been utilized for various energy and sensor applications, where the patterning of electrodes is essentially included. Laser scribing in a DVD writer and inkjet printing were used to pattern the graphene-like materials, but the size and speed of fabrication has been limited for practical applications. In this work, we devise a simple strategy to use conventional laser-printer toner materials as precursors for graphitic carbon electrodes. The toner was laser-printed on metal foils, followed by thermal annealing in hydrogen environment, finally resulting in the patterned thin graphitic carbon or graphene electrodes for supercapacitors. The electrochemical cells made of the graphene graphitic carbon electrodes show remarkably higher energy and power performance compared to conventional supercapacitors. Furthermore, considering the simplicity and scalability of roll-to-roll (R2R) electrode patterning processes, the proposed method would enable cheaper and larger-scale synthesis and patterning of graphene graphitic carbon electrodes for various energy applications in the future.
ISSN
1944-8244
URI
http://hdl.handle.net/10371/164998
DOI
https://doi.org/10.1021/acsami.7b13741
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Material Science and Engineering (재료공학부) Journal Papers (저널논문_재료공학부)
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