Nano Science and Technology Institute
Nanotech 2007 Vol. 4
Nanotech 2007 Vol. 4
Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 4
Chapter 2: Nanoparticles

Nonlinear Optical Property of Gold nanoparticles/Polymer Hybrid Materials

Authors:Q. Dai, J. Zou and Q. Huo
Affilation:Nanoscience Technology Center, University of Central Florida, US
Pages:363 - 365
Keywords:optical limiter, gold nanoparticles, hybrid
Abstract:The ability to control the assembly of nanoparticle building blocks is very important in the development of new nanostructured materials and devices. It is well known that the properties of nanostructured materials are not only dependent on the size and the function of the individual nanoparticles itself, but also the interparticle distance and interactions. Recently our group reported a novel solid phase place exchange reaction to synthesize gold nanoparticles with a single carboxyl functional group on the surface. Using these monofunctional gold nanoparticles, we synthesized sophisticated nanoparticles/polymer hybrid materials with ring structure using a single step chemical reaction. The optical limiting performance of the gold nanoparticles/polymer hybrid materials was investigated using a 4.1 ns laser at 532 nm. The hybrid materials exhibited enhanced optical limiting properties compared to individual monofunctional nanoparticles due to the dipole-dipole interparticles interactions. It was also found that the triplet excited state absorption was the main contribution to the optical limiting properties of the hybrid materials.
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