Reduction of graphene oxide foils by IR laser irradiation in air

Graphene oxide (GO) micrometric foils have been prepared using a graphene oxide solution. A pulsed IR laser at 970 nm wavelength, with a 100 ms pulse duration and an energy between 50 mJ and 0.7 J, has been employed to irradiate the micrometric GO foils in air. Pulsed IR laser irradiation of GO foil...

Full description

Saved in:
Bibliographic Details
Published in:Journal of instrumentation 2020-03, Vol.15 (3), p.C03006-C03006
Main Authors: Torrisi, L., Cutroneo, M., Torrisi, A., Salvato, G., Proverbio, E., Silipigni, L.
Format: Article
Language:English
Subjects:
Dosimeters
Foils
Graphene
Irradiation
Laser ablation
Lasers
Morphology
Penetration depth
Pulse duration
Reduction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Graphene oxide (GO) micrometric foils have been prepared using a graphene oxide solution. A pulsed IR laser at 970 nm wavelength, with a 100 ms pulse duration and an energy between 50 mJ and 0.7 J, has been employed to irradiate the micrometric GO foils in air. Pulsed IR laser irradiation of GO foils promotes the GO reduction in air and, when the GO foils are tightened between two transparent and thin flat glasses, it permits to realize electrically conductive strips, labelled as rGO. Measurements of laser ablation yield in air as a function of the pulse energy, analysis of elemental composition of the samples before and after the irradiation and morphological characterization have been performed. An estimation of both the temperature induced by the laser treatment and the penetration depth is presented. The so-obtained rGO foils can find many interesting applications in microelectronics, engineering and bio-medicine as sensors, detectors, ion strippers and dosimeters.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/15/03/C03006