Tunable Ag surface-plasmon-resonance wavelength and its application on the photochromic behavior of TiO2-Ag films

T. Jiang, L. Miao, S. Tanemura, M. Tanemura, G. Xu, R. P. Wang

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Surface and bulk plasmon resonance of noble metal particles play an essential role in the multicolor photochromism of semiconductor systems containing noble metal particles, Here we examined several key parameters affecting surface plasmon resonance wavelength (SPRW) of Ag particles and investigated the relation between surface plasmon and photochromic reaction wavelength. From the transmission spectra of sandwiched (TiO2/Ag/TiO2) and overcoated (Ag/TiO2) films deposited on quartz substrates at room temperature by rf helicon magnetron sputtering, we demonstrated that the SPRW can be made tunable by changing the surrounding media and thickness of the metal layer. The coloration and bleaching in visible light region due to photochromism were clearly observed for the films inserted with a 0.55 nm Ag layer.

Original languageEnglish
Pages (from-to)159-165
Number of pages7
JournalSuperlattices and Microstructures
Volume46
Issue number1-2
DOIs
Publication statusPublished - 2009 Jul

Keywords

  • Photochromism
  • Silver nano-particle
  • Surface plasmon resonance
  • TiO thin film
  • Wavelength tuning

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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