Photoluminescence from Au nanoparticles embedded in Au:oxide composite films

Journal Article · Fri Dec 15 00:00:00 EST 2006 · Journal of the Optical Society of America. Part B, Optical Physics

DOI:https://doi.org/10.1364/JOSAB.23.002518· OSTI ID:20861438

Hongbo, Liao; Weijia, Wen; Wong, George K. L. ^[1]

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1. Department of Physics, Beijing Normal University, Beijing 100875 (China)

Au:oxide composite multilayer films with Au nanoparticles sandwiched by oxide layers (such as SiO{sub 2}, ZnO, and TiO{sub 2}) were prepared in a magnetron sputtering system. Their photoluminescence (PL) spectra were investigated by employing a micro-Raman system in which an Argon laser with a wavelength of 514 nm was used as the pumping light. Distinct PL peaks located at a wavelength range between 590 and 680 nm were observed in most of our samples, with Au particle size varying from several to hundreds of nanometers. It was found that the surface plasmon resonance (SPR) in these composites exerted a strong influence on the position of the PL peaks but had little effect on the PL intensity.

• OSTI ID: 20861438
• Journal Information: Journal of the Optical Society of America. Part B, Optical Physics, Vol. 23, Issue 12; Other Information: DOI: 10.1364/JOSAB.23.002518; (c) 2006 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA); ISSN 0740-3224
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ARGON
COMPOSITE MATERIALS
DEPOSITION
GOLD
LASERS
LAYERS
MAGNETRONS
NANOSTRUCTURES
OPTICAL PUMPING
PARTICLE SIZE
PARTICLES
PHOTOLUMINESCENCE
RAMAN SPECTRA
SILICON OXIDES
SPUTTERING
THIN FILMS
TITANIUM OXIDES
VISIBLE RADIATION
WAVELENGTHS
ZINC OXIDES