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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Vydáno v:	Carbon (New York) Ročník 62; s. 182 - 192
Hlavní autoři:	Sun, Zhenyu, Dong, Ningning, Wang, Kangpeng, König, Dennis, Nagaiah, Tharamani Chikka, Sánchez, Miguel D., Ludwig, Alfred, Cheng, Xin, Schuhmann, Wolfgang, Wang, Jun, Muhler, Martin
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Kidlington Elsevier Ltd 01.10.2013 Elsevier
Témata:	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
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Popis
Shrnutí:	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.
Bibliografie:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2
ISSN:	0008-6223 1873-3891
DOI:	10.1016/j.carbon.2013.06.010