Abstract
Abstract We fabricate graphene oxide (GO)-coated fiber bundles via electrostatic deposition of GO sheets on polyester/cotton fiber bundles and investigate the changes in their properties by chemical reduction in a hydroiodic acid solution. The structural properties of GO sheets change rapidly upon exposure to reduction agents but remain under a high defect density regime after the reduction. The electrical resistance of the fiber bundles decreases logarithmically for the first minute of the reduction. In contrast to the structural property, a longer chemical reduction over tens of minutes deteriorates the electrical property. The effect of chemical reduction on the electrical conductance of GO-coated fiber bundles is discussed based on the competition of various factors, such as the number of conducting pathways and the carrier density, among others.
| Original language | English |
|---|---|
| Article number | 14915 |
| Pages (from-to) | 90-94 |
| Number of pages | 5 |
| Journal | Synthetic Metals |
| Volume | 204 |
| DOIs | |
| Publication status | Published - 2015 Jan 1 |
| Externally published | Yes |
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Keywords
- Chemical reduction
- Electrical conductance
- Graphene oxide
- Polymer
- Raman spectroscopy
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
Cite this
Transition of graphene oxide-coated fiber bundles from insulator to conductor by chemical reduction. / Ha, Dong Han; Jung, Suyong; Kim, Ho Jong; Kim, Daehee; Kim, Wan Joong; Yi, Sam Nyung; Jun, Yongseok; Yun, Yong Ju.
In: Synthetic Metals, Vol. 204, 14915, 01.01.2015, p. 90-94.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Transition of graphene oxide-coated fiber bundles from insulator to conductor by chemical reduction
AU - Ha, Dong Han
AU - Jung, Suyong
AU - Kim, Ho Jong
AU - Kim, Daehee
AU - Kim, Wan Joong
AU - Yi, Sam Nyung
AU - Jun, Yongseok
AU - Yun, Yong Ju
PY - 2015/1/1
Y1 - 2015/1/1
N2 - Abstract We fabricate graphene oxide (GO)-coated fiber bundles via electrostatic deposition of GO sheets on polyester/cotton fiber bundles and investigate the changes in their properties by chemical reduction in a hydroiodic acid solution. The structural properties of GO sheets change rapidly upon exposure to reduction agents but remain under a high defect density regime after the reduction. The electrical resistance of the fiber bundles decreases logarithmically for the first minute of the reduction. In contrast to the structural property, a longer chemical reduction over tens of minutes deteriorates the electrical property. The effect of chemical reduction on the electrical conductance of GO-coated fiber bundles is discussed based on the competition of various factors, such as the number of conducting pathways and the carrier density, among others.
AB - Abstract We fabricate graphene oxide (GO)-coated fiber bundles via electrostatic deposition of GO sheets on polyester/cotton fiber bundles and investigate the changes in their properties by chemical reduction in a hydroiodic acid solution. The structural properties of GO sheets change rapidly upon exposure to reduction agents but remain under a high defect density regime after the reduction. The electrical resistance of the fiber bundles decreases logarithmically for the first minute of the reduction. In contrast to the structural property, a longer chemical reduction over tens of minutes deteriorates the electrical property. The effect of chemical reduction on the electrical conductance of GO-coated fiber bundles is discussed based on the competition of various factors, such as the number of conducting pathways and the carrier density, among others.
KW - Chemical reduction
KW - Electrical conductance
KW - Graphene oxide
KW - Polymer
KW - Raman spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=84925844788&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84925844788&partnerID=8YFLogxK
U2 - 10.1016/j.synthmet.2015.03.018
DO - 10.1016/j.synthmet.2015.03.018
M3 - Article
AN - SCOPUS:84925844788
VL - 204
SP - 90
EP - 94
JO - Synthetic Metals
JF - Synthetic Metals
SN - 0379-6779
M1 - 14915
ER -