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One, Two, and Three Demisional Gold Nanoparticle Arrays from Reverse Micelles

Published online by Cambridge University Press:  02 July 2020

W.L. Zhou
Affiliation:
Advanced Materials Research Institute, University of New Orleans, New Orleans, LA70148
J. Lin
Affiliation:
Advanced Materials Research Institute, University of New Orleans, New Orleans, LA70148
C.J. O'Connor
Affiliation:
Advanced Materials Research Institute, University of New Orleans, New Orleans, LA70148
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Nanoparticles (1-100 nm) of semiconductors and metals have shown some unique optical, electric and magnetic and catalytic properties which are greatly different from their bulk materials. Recently the use of these nanoparticles as quantum dots in nanoelectronics requires their arrangement in one, two, and three dimensions (1D, 2D and 3D). Therefore more attention has been paid to the organization of these nanoparticles into ordered arrays in order to achieve novel collective properties. Gold colloids have been well studied for its self-organization in several systems. Here we present 1D, 2D and 3D gold self-organization nanostructure generated from reverse micelles (microemulsion system).

Gold nanoparticles were prepared by the reduction of HAuCU in CTAB (cetyltrimethylammonium bromide)/Octane+l-Butanol/H2O microemusion system using NaBH4 as the reducing agent. Typically, 0.3g of CTAB, 0.148ml of 0.056M HAuCl4 aqueous solution, l.Og octane (surfactant) and 0.25g 1-butanol (cosurfactant) were mixed together and stirred vigorously for 10 min until a homogenous phase was obtained.

Type
Sir John Meurig Thomas Symposium: Microscopy and Microanalysis in the Chemical Sciences
Copyright
Copyright © Microscopy Society of America

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