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Temperature dependent localized surface plasmon resonance properties of supported gold nanoparticles
Published in American Institute of Physics Inc.
2016
Volume: 1731
   
Issue: 1
Abstract
The well known localized surface plasmon resonance (LSPR) of gold nanoparticles (AuNPs) supported on a dielectric substrate depends on the particle shape, size and type of dielectric material. The particle size and shape mainly vary with the method of preparation and the parameters involved there in. In this report, we show preparation of AuNPs supported on quartz substrate by direct current sputtering followed by thermal annealing at an optimized temperature of 400 °C. The samples were characterized using optical absorption spectra, scanning electron microscopy (SEM) and the energy dispersive x-ray spectrum. The LSPR position could be tuned by varying annealing temperature. The LSPR was found to be blue shifted up to 10 nm with annealing temperature varying from 400 °C to 800 °C. The change in LSPR was ascribed to the morphology of AuNPs over quartz. © 2016 Author(s).
About the journal
JournalData powered by SciSpaceAIP Conference Proceedings
PublisherData powered by SciSpaceAmerican Institute of Physics Inc.
ISSN0094243X
Open AccessNo