Abstract
In the present study, we propose a method to fabricate large-area graphene-based thin films using rapid low-temperature reduction of graphene-oxide. Large area (∼17.5 sq.cm.) graphene oxide (GO) thin films are fabricated by vacuum filtration of GO solution synthesized by the modified Hummers' method. The graphene-oxide thin films are reduced in a MTS testing machine equipped with a controlled atmosphere furnace. Reduction is carried out at temperatures from 200°C to 400°C, for different time durations. The fabricated reduced GO thin films are characterized using powder x-ray diffraction and energy-dispersive x-ray spectroscopy. The reduced graphene oxide thin films show decreased interlayer spacing and higher carbon-to-oxygen ratio. Conductivity measurements show an increase in conductivity by over five orders of magnitude compared to GO. This method offers a scalable new way of fabricating conductive large-area graphene-based thin films.
Original language | English (US) |
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Title of host publication | Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013 |
Volume | 8692 |
DOIs | |
State | Published - Jun 12 2013 |
Event | 2013 SPIE Conference on Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013 - San Diego, CA, United States Duration: Mar 10 2013 → Mar 14 2013 |
Other
Other | 2013 SPIE Conference on Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013 |
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Country/Territory | United States |
City | San Diego, CA |
Period | 3/10/13 → 3/14/13 |
Keywords
- Graphene
- Thermal reduction
- Thin film
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering