Enhanced visible-light absorption from Ag2O nanoparticles in nitrogen-doped TiO2 thin films

Feng Fang; Qi Li; Jian Ku Shang

doi:10.1016/j.surfcoat.2010.10.068

Enhanced visible-light absorption from Ag₂O nanoparticles in nitrogen-doped TiO₂ thin films

Feng Fang, Qi Li, Jian Ku Shang

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Ion-beam-assisted deposition was used to prepare TiON thin film with ultrafine Ag₂O semiconductor nanoparticles. These Ag₂O nanoparticles were about 3nm. The obtained thin films showed an obvious "red-shift" in the optical absorption spectrum. The absorption in the visible-light range is resulting from the absorption by metallic-like nanoparticles as silver changed its chemical state from Ag⁺ to Ag in nitrogen-doped titanium oxide matrix under visible-light illumination.

Original language	English (US)
Pages (from-to)	2919-2923
Number of pages	5
Journal	Surface and Coatings Technology
Volume	205
Issue number	8-9
DOIs	https://doi.org/10.1016/j.surfcoat.2010.10.068
State	Published - Jan 25 2011

Keywords

Nitrogen-doped TiO
Silver nanoparticles
Thin film
Visible-light absorption

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

Online availability

10.1016/j.surfcoat.2010.10.068

Library availability

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Cite this

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abstract = "Ion-beam-assisted deposition was used to prepare TiON thin film with ultrafine Ag2O semiconductor nanoparticles. These Ag2O nanoparticles were about 3nm. The obtained thin films showed an obvious {"}red-shift{"} in the optical absorption spectrum. The absorption in the visible-light range is resulting from the absorption by metallic-like nanoparticles as silver changed its chemical state from Ag+ to Ag in nitrogen-doped titanium oxide matrix under visible-light illumination.",

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AU - Li, Qi

AU - Shang, Jian Ku

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AB - Ion-beam-assisted deposition was used to prepare TiON thin film with ultrafine Ag2O semiconductor nanoparticles. These Ag2O nanoparticles were about 3nm. The obtained thin films showed an obvious "red-shift" in the optical absorption spectrum. The absorption in the visible-light range is resulting from the absorption by metallic-like nanoparticles as silver changed its chemical state from Ag+ to Ag in nitrogen-doped titanium oxide matrix under visible-light illumination.

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KW - Silver nanoparticles

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KW - Visible-light absorption

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