Large-scale plasma patterning of transparent graphene electrode on flexible substrates

Graphene, a two-dimensional carbon material, has attracted significant interest for applications in flexible electronics as an alternative transparent electrode to indium tin oxide. However, it still remains a challenge to develop a simple, reproducible, and controllable fabrication technique for pr...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1985. - 31(2015), 9 vom: 10. März, Seite 2914-21
1. Verfasser: Kim, Ji Hye (VerfasserIn)
Weitere Verfasser: Ko, Euna, Hwang, Joonki, Pham, Xuan-Hung, Lee, Joo Heon, Lee, Sung Hwan, Tran, Van-Khue, Kim, Jong-Ho, Park, Jin-Goo, Choo, Jaebum, Han, Kwi Nam, Seong, Gi Hun
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Oxides Plasma Gases Graphite 7782-42-5
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520 |a Graphene, a two-dimensional carbon material, has attracted significant interest for applications in flexible electronics as an alternative transparent electrode to indium tin oxide. However, it still remains a challenge to develop a simple, reproducible, and controllable fabrication technique for producing homogeneous large-scale graphene films and creating uniform patterns with desired shapes at defined positions. Here, we present a simple route to scalable fabrication of flexible transparent graphene electrodes using an oxygen plasma etching technique in a capacitively coupled plasma (CCP) system. Ascorbic acid-assisted chemical reduction enables the large-scale production of graphene with solution-based processability. Oxygen plasma in the CCP system facilitates the reproducible patterning of graphene electrodes, which allows controllable feature sizes and shapes on flexible plastic substrates. The resulting graphene electrode exhibits a high conductivity of 80 S cm(-1) and a transparency of 76% and retains excellent flexibility upon hard bending at an angle of ±175° and after repeated bending cycles. A simple LED circuit integrated on the patterned graphene film demonstrates the feasibility of graphene electrodes for use in flexible transparent electrodes 
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700 1 |a Ko, Euna  |e verfasserin  |4 aut 
700 1 |a Hwang, Joonki  |e verfasserin  |4 aut 
700 1 |a Pham, Xuan-Hung  |e verfasserin  |4 aut 
700 1 |a Lee, Joo Heon  |e verfasserin  |4 aut 
700 1 |a Lee, Sung Hwan  |e verfasserin  |4 aut 
700 1 |a Tran, Van-Khue  |e verfasserin  |4 aut 
700 1 |a Kim, Jong-Ho  |e verfasserin  |4 aut 
700 1 |a Park, Jin-Goo  |e verfasserin  |4 aut 
700 1 |a Choo, Jaebum  |e verfasserin  |4 aut 
700 1 |a Han, Kwi Nam  |e verfasserin  |4 aut 
700 1 |a Seong, Gi Hun  |e verfasserin  |4 aut 
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