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Self-assembly PbSe Nanoparticles into Nanorings

Published online by Cambridge University Press:  10 February 2011

Weilie L. Zhou ,
Jibao He ,
Jiye Fang ,
Tuyet-Anh Huynh ,
Trevor J. Kennedy ,
Kevin L. Stokes  and
Charles J. O'Connor
Weilie L. Zhou
Affiliation:
Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148
Jibao He
Affiliation:
Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148
Jiye Fang
Affiliation:
Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148
Tuyet-Anh Huynh
Affiliation:
Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148
Trevor J. Kennedy
Affiliation:
Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148
Kevin L. Stokes
Affiliation:
Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148
Charles J. O'Connor
Affiliation:
Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148
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Abstract

In this presentation, we report the self-assembly of monolayer and multilayer nanorings of PbSe nanoparticles. PbSe nanoparticles were synthesized by using a high temperature precipitation method. The nanoparticles are about 5 nm and appeared as truncated octahedral enclosed by the {100} and {111} crystal facets of fcc structure. The large area monodisperse self-assembly nanoarrays were obtained by dropping the high concentration solution of PbSe nanoparticles on the carbon grid. The nanoparticles are hexagonal close packed and oriented randomly in the nanoarrays. By diluting the solution for large area self-assembly, self-assembly of monolayer and multilayer nanorings can be achieved. The nanoring formation is determined by hydrodynamics, surface effects, and interaction between the nanoparticles and carbon grid.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 775: Symposium P – Self-Assembled Nanostructured Materials , 2003 , P10.5
Copyright
Copyright © Materials Research Society 2003

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