Ag-stabilized few-layer graphene dispersions in low boiling point solvents for versatile nonlinear optical applications

A solution stabilization strategy that uses an easily removable media is critical to graphene (G) applications. Here, we demonstrate that highly stable graphene dispersions in low boiling point solvents such as isopropanol can be readily achieved by the uniform deposition of Ag nanoparticles (NPs) o...

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Bibliographic Details
Published in:Carbon (New York) Vol. 62; pp. 182 - 192
Main Authors: Sun, Zhenyu, Dong, Ningning, Wang, Kangpeng, König, Dennis, Nagaiah, Tharamani Chikka, Sánchez, Miguel D., Ludwig, Alfred, Cheng, Xin, Schuhmann, Wolfgang, Wang, Jun, Muhler, Martin
Format: Journal Article
Language:English
Published: Kidlington Elsevier Ltd 01.10.2013
Elsevier
Subjects:
boiling point
Boiling points
Chemistry
Colloidal state and disperse state
Cross-disciplinary physics: materials science; rheology
Dispersions
Exact sciences and technology
Fullerenes and related materials; diamonds, graphite
General and physical chemistry
Graphene
isopropyl alcohol
lasers
Materials science
Nanocrystalline materials
Nanopowders
Nanoscale materials and structures: fabrication and characterization
nanosilver
Nanostructure
Nonlinearity
optical properties
particle size
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Physics
Silver
Solvents
Specific materials
Strategy
Particle size
Stabilization
Ultrasonic waves
Dispersions
Precursor
Nanoparticles
Silver
Synthesis
Calcium nitride
Graphene
Boiling points
Nonlinear optics
Deposition
Ultrafast process
ISSN:0008-6223, 1873-3891
Online Access:Get full text
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Summary:A solution stabilization strategy that uses an easily removable media is critical to graphene (G) applications. Here, we demonstrate that highly stable graphene dispersions in low boiling point solvents such as isopropanol can be readily achieved by the uniform deposition of Ag nanoparticles (NPs) on the surface of graphene. Optimizing the synthesis parameters such as ultrasonic intensity, feeding strategy, loading content and precursor concentration allowed us to tune the particle size and, in this way, the stabilizing effects of the NPs on the dispersions. The as-obtained Ag/G/i-PrOH dispersions exhibit versatile nonlinear optical properties suggesting a great potential in nanophotonic applications such as absorber for ultrafast lasers and eye protection.
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ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2013.06.010