Large-Scale Plasma Patterning of Transparent Graphene Electrode on Flexible Substrates

Title
Large-Scale Plasma Patterning of Transparent Graphene Electrode on Flexible Substrates
Authors
주재범
Keywords
RAMAN-SPECTROSCOPY; GRAPHITE OXIDE; VITAMIN-C; REDUCTION; CARBON; FABRICATION; NANOSHEETS; OXIDATION; SURFACES; FORCE
Issue Date
2015-04
Publisher
AMER CHEMICAL SOC
Citation
LANGMUIR, v. 31, Page. 2914-2921
Abstract
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 degrees 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.
URI
http://pubs.acs.org/doi/abs/10.1021/la504443ahttp://hdl.handle.net/20.500.11754/24066
ISSN
0743-7463; 1520-5827
DOI
http://dx.doi.org/10.1021/la504443a
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE