Photocatalytic Micropatterning of Transparent Ethylsilsesquioxane−Titania Hybrid Films

Matsuda, Atsunori; Sasaki, Teruyuki; Tadanaga, Kiyoharu; Tatsumisago, Masahiro; Minami, Tsutomu

doi:10.1021/cm020118+

Cited by 23 publications

(19 citation statements)

References 29 publications

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“…26), 27) Our research group have reported that silsesquioxane films are suitable to be used as matrices for optical-function films because they can be transparent thick films and easy to dope functional elements. 28) We also have recently reported a series of research on Ag-doped silsesquioxane films for rewritable hologram data storage application. 29)32) Ag-doped vinyl-silsesquioxane (ViSiO 3/2 )TiO 2 films have shown reversible absorbance change by alternate ultra-violet (UV) radiation and heat treatment.…”

Section: )13)mentioning

confidence: 99%

Reversible change of diffraction efficiency in Cl-containing 3-glycidoxypropyl silsesquioxane films co-doped with Ag and Cu

Kawamura

Ikeda

Ito

et al. 2016

J. Ceram. Soc. Japan

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The reversible change of diffraction efficiency is confirmed in the solgel-derived Cl-containing inorganicorganic hybrid films co-doped with Ag and Cu by interfered blue and green laser irradiations. The change of diffraction efficiency is due to absorbance change, which is caused by a mutual conversion of Ag and AgCl nanoparticles upon the laser irradiations. The role of Cu is clarified that electrons are transferred between Ag and Cu, which is indispensable for the reversibility of the absorbance change. The Ag nanoparticles are observed to be aggregated after several cycles of blue and green laser irradiations. The aggregation would occur because of the migration of Ag element during laser irradiation. The diffraction efficiency of the film reaches 0.75% after interfered blue laser irradiation; then it decreases almost 0% by green laser irradiation. Subsequent interfered blue laser irradiation increases again the diffraction efficiency up to 0.59%. This suggests that our materials can be used as rewritable hologram recording media.

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Section: )13)mentioning

confidence: 99%

Reversible change of diffraction efficiency in Cl-containing 3-glycidoxypropyl silsesquioxane films co-doped with Ag and Cu

Kawamura

Ikeda

Ito

et al. 2016

J. Ceram. Soc. Japan

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“…The inorganicorganic hybrids prepared by the solgel method are promising host matrices to design such holographic materials. 6) In order to materialize promising holographic material, we have prepared Ag + ion-or AgBr nanoparticle-doped inorganicorganic hybrid films by the solgel method and evaluated their optical properties including the hologram formation ability. The mechanism of the hologram formation in the films is the generation of Ag nanoparticles at the region where strong light is irradiated.…”

Section: )mentioning

confidence: 99%

Sol-gel synthesis of novel photosensitive material with advanced holographic properties

Kawamura

Tsurumi

Muto

et al. 2011

J. Ceram. Soc. Japan

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Silver chloride nanoparticle-doped glycidoxypropylsilsesquioxanetitania hybrid films are prepared by the solgel method and their hologram-related properties are investigated. The optical absorption of the film embedded with AgCl nanoparticles at a blue laser wavelength is stronger than that of the film embedded with AgBr nanoparticles. The strong absorption of the film with AgCl nanoparticles leads to a considerable increase in absorption in the visible wavelength region upon blue laser irradiation. This phenomenon is generally implicated in good hologram formation ability of the film. A simultaneous addition of AgNO 3 and CCl 3 COOH from separate vessels to the sol realizes homogeneous dispersion of AgCl in the hybrid films. The diffraction efficiency of the film exposed to an interferential blue laser shows a good hologram formation ability of the film and a high reliability for readout-angle deviation.

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“…22 This process is based on the irreversible structural changes in the films caused by the cleavage of Si-C bonds by the photocatalytic activity of the TiO 2 component during UV irradiation. In addition, these structural changes by the UV irradiation induce the changes of film properties, such as the refractive index, the contact angle for water and the hardness.…”

Section: -13mentioning

confidence: 99%

Structural Changes in RSiO3/2-TiO2 Hybrid Films with UV Irradiation and Their Photocatalytic Micropatterning

Sasaki

Matsuda

Tadanaga

et al. 2005

J. Ceram. Soc. Japan

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Photocatalytic Micropatterning of Transparent Ethylsilsesquioxane−Titania Hybrid Films

Cited by 23 publications

References 29 publications

Reversible change of diffraction efficiency in Cl-containing 3-glycidoxypropyl silsesquioxane films co-doped with Ag and Cu

Reversible change of diffraction efficiency in Cl-containing 3-glycidoxypropyl silsesquioxane films co-doped with Ag and Cu

Sol-gel synthesis of novel photosensitive material with advanced holographic properties

Structural Changes in RSiO3/2-TiO2 Hybrid Films with UV Irradiation and Their Photocatalytic Micropatterning

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