Optical Properties of Noble Metal Nanoparticles in Dielectric Thin Films

Date of Award

2010

Document Type

Thesis

Degree Name

Bachelors

Department

Natural Sciences

First Advisor

Sendova, Mariana

Keywords

Nanoparticles, Plasmon, Surface Plasmon Resonance, Thin Films, Mic, Optics, Physics, Au, Ag, Stained Glass, Nanoscience, SiO2

Area of Concentration

Physics

Abstract

This study investigates methods for modification of the size, shape and arrangement of noble metal nanoparticles (NPs) in dielectric thin films including laser irradiation and thermal annealing in conjunction with the application of a DC electric field. Laser irradiation of Au NPs in SiO2 were shown to slightly increase in radius, from 2.4 0.8 nm to 2.9 0.9 nm. Application of simultaneous thermal annealing and a strong DC electric field to Ag particles were shown to induce optical dichroism which might indicate a modification of the arrangement of the NPs in the film. Experimental methods for studying metal NPs include Transmission Electron Microscopy (TEM) and UV-VIS-IR spectroscopy.

Rights

This bibliographic record is available under the Creative Commons CC0 public domain dedication. The New College of Florida, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.

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