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Auteur Hirotaka Ihara |
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Enhancement of the Mie scattering effect using floatstone-like TiO2 spherical micropigment / Tomohiro Shirosaki in COLORATION TECHNOLOGY, Vol. 133, N° 3 (06/2017)
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Titre : Enhancement of the Mie scattering effect using floatstone-like TiO2 spherical micropigment Type de document : texte imprimé Auteurs : Tomohiro Shirosaki, Auteur ; Erika Tsuda, Auteur ; Shoji Nagaoka, Auteur ; Hirotaka Ihara, Auteur Année de publication : 2017 Article en page(s) : p. 187-193 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acide polyacrylique
Core-Shell
Dioxyde de titane
Particules (matières)
Pigments inorganiques
Polyacrylate de butyle
Polyacrylates
RéflectanceIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Floatstone-like TiO2 microparticles with an efficiently enhanced Mie scattering effect were developed by thermofusing of rutile-type TiO2 submicron particles on the template core of poly(acrylate) microspheres. The light reflectance of the floatstone-like TiO2 microparticles was approximately 10% higher than that of the usual rutile-type TiO2 submicron particles in a wavelength range from 400 to 850 nm. The diffuse reflectance of the microparticles is enhanced by the formation of a floatstone-like structure, whereas there is no difference in the specular reflectance of the particles. As an application of the floatstone-like TiO2 microparticles, the contribution of the particles to the light-trapping effect of a solar cell was examined. The power conversion efficiency of the solar cell was enhanced by 22% with the introduction of a light-scattering layer composed of the floatstone-like TiO2 microparticles. Note de contenu : - EXPERIMENTAL : Materials and methods - Preparation of PAA-PBA microspheres - Preparation of PAA-PBA/TiO2 core-shell microspheres - Preparation of floatstone-like TiO2 microparticles - Fabrication of DSSCs
- RESULTS AND DISCUSSION : Preparation of floatstone-like TiO2 microparticles - Optical properties of floatstone-like TiO2 microparticles - The I-V characteristics of a DSSC with a floatstone-like TiO2 microparticle SLDOI : 10.1111/cote.12278 En ligne : https://drive.google.com/file/d/1oYLGFagAJYuQiHyYx-KODaF1GRhNIBEb/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28642
in COLORATION TECHNOLOGY > Vol. 133, N° 3 (06/2017) . - p. 187-193[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18922 - Périodique Bibliothèque principale Documentaires Disponible Environmentally friendly coloured materials : cellulose/titanium dioxide/inorganic pigment composite spherical microbeads prepared by viscose phase-separation method / Shoji Nagaoka in COLORATION TECHNOLOGY, Vol. 123, N° 6 (2007)
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Titre : Environmentally friendly coloured materials : cellulose/titanium dioxide/inorganic pigment composite spherical microbeads prepared by viscose phase-separation method Type de document : texte imprimé Auteurs : Shoji Nagaoka, Auteur ; Masanori Nagata, Auteur ; Kenji Arinaga, Auteur ; Kiyoshi Shigemori, Auteur ; Makoto Takafuji, Auteur ; Hirotaka Ihara, Auteur Année de publication : 2008 Article en page(s) : p. 344-350 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : In order to develop environmentally friendly coloured materials, cellulose composite spherical microbeads hybridised with titanium dioxide (TiO2) particles and inorganic pigment were prepared by a phase-separation method using viscose and an aqueous solution containing sodium polyacrylate. Findings regarding the relationships between cellulose xanthate and the electronic characteristics of TiO2 particles used in the cellulose/inorganic material composite sphering process are also reported. These findings suggest that the location of TiO2 particles in cellulose microbeads is related to electrical repulsion between the xanthate (CSS-) group and TiO2. The use of TiO2 powder as colour pigment is limited, as its colour is white. The cellulose composite spherical microbeads covered with TiO2 and Fe2O3 particles were developed by addition of iron oxide (Fe2O3). Their surfaces were viewed by laser microscope and using SEM images. These composite microbeads retained the photocatalytic property of TiO2. Cellulose/TiO2/Fe2O3 composite spherical microbeads with both colour function and photocatalytic properties were successfully prepared. DOI : 10.1111/j.1478-4408.2007.00107.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00107.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6853
in COLORATION TECHNOLOGY > Vol. 123, N° 6 (2007) . - p. 344-350[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008990 - Périodique Bibliothèque principale Documentaires Disponible