Photochromic Ag-TiO2 thin films fabricated by dual-target helicon magnetron sputtering

L. Miao, T. Jiang, S. Tanemura, M. Tanemura, M. Mori, S. Toh, Kenji Kaneko

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    Photochromic material Ag-TiO2 thin films are fabricated on quartz substrate by dual -target helicon magnetron sputtering. The phototchromic behavior is investigated for the sample loaded with 90% Ag. Spheres, ellipsoids and polyhedra shape of Ag particles with wide range size (5∼100 nm) are dispersed in the TiO2 amorphous matrix observed by transmission electron microscopy. The spectral hole burned by the irradiation of laser at the wavelength 532 nm can be explained by a particle-plasmon-assisted electron transfer from Ag nanoparticles to TiO2 and subsequent trapping by adsorbed molecular oxygen. Moreover, the mechanism of the slow recovery after photochromism is suggested as a slow thermal release of electrons from oxygen trapping centers and subsequent capture into the Ag nanoparticles.

    Original languageEnglish
    Title of host publicationAICAM 2005 - Proceedings of the Asian International Conference on Advanced Materials
    PublisherTrans Tech Publications
    Pages167-170
    Number of pages4
    ISBN (Print)0878499792, 9780878499793
    Publication statusPublished - Jan 1 2006
    EventAICAM 2005 - Asian International Conference on Advanced Materials - Beijing, China
    Duration: Nov 3 2005Nov 5 2005

    Publication series

    NameAdvanced Materials Research
    Volume11-12
    ISSN (Print)1022-6680

    Other

    OtherAICAM 2005 - Asian International Conference on Advanced Materials
    Country/TerritoryChina
    CityBeijing
    Period11/3/0511/5/05

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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