Engineering two-dimensional gold nanostructures using graphene oxide nanosheets as a template
Tipo
Artigo
Data de publicação
2018
Periódico
Nanoscale
Citações (Scopus)
17
Autores
Marangoni V.S.
Germano L.D.
Silva C.C.C.
De Souza E.A.
Maroneze C.M.
Germano L.D.
Silva C.C.C.
De Souza E.A.
Maroneze C.M.
Orientador
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Título de Volume
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Resumo
© 2018 The Royal Society of Chemistry.The rich plasmon resonance modes and local field enhancements of two-dimensional (2D) noble metal nanostructures have boosted their application in distinct areas like catalysis, photonics, medicine and sensing. Here, we develop a unique strategy for the controlled growth of asymmetric 2D gold nanostructures in aqueous media using graphene oxide as a template. By performing mild reduction of gold ions on the surface of Au seeds (∼2 nm) attached to graphene oxide nanosheets, the anisotropic growth of 2D gold nanostructures can be carried out through a simple procedure with a tunable control of the final size, shape and thickness, and consequently on their optical properties, without using surfactants.
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Assuntos Scopus
Anisotropic growth , Controlled growth , Gold nanostructures , Graphene oxide nanosheets , Local field enhancement , Metal nanostructure , Plasmon resonances , Two Dimensional (2 D)