Nanoscale color control of TiO2 films with embedded Au nanoparticles

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • M. Torrell
  • L. Cunha
  • Md. R. Kabir
  • A. Cavaleiro
  • M. I. Vasilevskiy
  • And 1 others
  • F. Vaz

Detail(s)

Original languageEnglish
Pages (from-to)2624-2626
Journal / PublicationMaterials Letters
Volume64
Issue number23
Publication statusPublished - 15 Dec 2010
Externally publishedYes

Abstract

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 TiO 2/Au in the SPR region, the variation of their optical absorption spectra correlates with morphological changes. © 2010 Elsevier B.V. All rights reserved.

Citation Format(s)

Nanoscale color control of TiO2 films with embedded Au nanoparticles. / Torrell, M.; Cunha, L.; Kabir, Md. R.; Cavaleiro, A.; Vasilevskiy, M. I.; Vaz, F.

In: Materials Letters, Vol. 64, No. 23, 15.12.2010, p. 2624-2626.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review