2014-Sustainable Industrial Processing Summit
SIPS 2014 Volume 5: Composite, Ceramic, Quasi-crystals, Nanomaterials & Coatings
| Editors: | Kongoli F |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2014 |
| Pages: | 578 pages |
| ISBN: | 978-1-987820-07-2 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Tuning the Optical Properties of Ordered Arrays of Ag Nanostructures Created by Ion Implantation through a Mask of Colloidal Silica Particles
Juan-Carlos Cheang-Wong1;1INSTITUTO DE FISICA, UNIVERSIDAD NACIONAL AUTONOMA DE MEXICO, Mexico, Mexico;
Type of Paper: Regular
Id Paper: 71
Topic: 16
Abstract:
Colloidal silica particles are being intensively studied due to their potential applications in catalysis, intelligent materials, optoelectronic devices, photonic bandgap crystals, masks for lithographic nanopatterning, etc. On the other hand, in nanoscale electronic, photonic and plasmonic devices, feature dimensions shrink towards a critical limit, and new experimental approaches have to be explored in lithographic patterning in order to create ordered arrays of metallic nanostructures with useful optical properties.
For this work, spherical submicrometer-sized silica particles were prepared by the sol-gel technique and deposited as a self-assembled monolayer onto silica glass plates using a spin coater system. This silica monolayer is then used as a mask to create regular arrays of nanoscale features in the sample by 1 MeV Ag ion implantation. By this way, after the removal of silica particles and an adequate thermal annealing of the as implanted samples, the formation of Ag nano-objects was confirmed by the presence of the surface plasmon resonance in the optical absorption spectra.
The size and shape of the array of metallic deposits were studied by scanning and transmission electron microscopy, respectively. The total amount of implanted Ag was measured by Rutherford Backscattering Spectrometry (RBS). Finally, the long range order of the Ag nanoparticle assembly and its plasmonics properties were characterized by means of a Fast Fourier Transform study and optical absorption measurements, respectively.