Author(s):
Torrell, M. 
; Cunha, L. ; Kabir, R. ; Cavaleiro, A. ; Vasilevskiy, Mikhail ; Vaz, F.
Date: 2010
Persistent ID: http://hdl.handle.net/1822/13522
Origin: RepositóriUM - Universidade do Minho
Document details
Nanoscale color control of TiO2 films with embedded Au nanoparticles
Description
Article in press We demonstrate an efficient nanoscale control of the optical properties of TiO2 films by tuning the Surface Plasmon Resonance (SPR) in the embedded Au nanoparticles. The films were grown by reactive magnetron sputtering. SPR tuning was achieved by different annealings, which affected the shape and size of the Au nanoparticles, and also the phase of the dielectric matrix. These changes promoted the variations on the optical properties. As shown by the modeling of the effective dielectric function of the TiO2/Au in the SPR region, the variation of their optical absorption spectra correlates with morphological changes.
Article in press We demonstrate an efficient nanoscale control of the optical properties of TiO2 films by tuning the Surface Plasmon Resonance (SPR) in the embedded Au nanoparticles. The films were grown by reactive magnetron sputtering. SPR tuning was achieved by different annealings, which affected the shape and size of the Au nanoparticles, and also the phase of the dielectric matrix. These changes promoted the variations on the optical properties. As shown by the modeling of the effective dielectric function of the TiO2/Au in the SPR region, the variation of their optical absorption spectra correlates with morphological changes.
Document Type
Article
Language English
Language English
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