Layered inorganic-organic nanocomposites: Application to photofunctional materials and conversion to inorganic microporous materials

Kazuyuki Kuroda, Makoto Ogawa, Tsuneo Yanagisawa, Chuzo Kato

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

Abstract

Layered inorganic-organic nanocomposites can be prepared by intercalation of organic compounds into various two dimensional inorganic compounds, such as clay minerals and layered polysilicates. Two different roles of organic guest species are described in the application of intercalation compounds to development of functional materials. The first case shows that organic substances with peculiar photochemical properties can be incorporated in the nanometer-scaled interlayer spaces. Luminescence behavior and photochemical hole burning (PHB) of layered inorganic-organic nanocomposites are investigated from the viewpoint of host-guest interactions. The luminescence maxima of intercalated Ru(bpy)32+ incorporated into fluor-tetrasilicic mica cointercalated with poly(vinylpyrrolidone) shifted gradually toward blue with the decrease in the loading of Ru(bpy)32+. Ru(bpy)32+ was effectively isolated to suppress self quenching due to aggregation even at its high concentration loading. 1,4-Dihydroxyanthraquinone which is known to show a PHB reaction was intercalated into a tetramethylammonium pillared clay mineral and persistent spectral zero-phonon hole was observed at liquid helium temperatures. In spite of the high concentration of 1,4-dihydroxyanthraquinone, a narrow hole was obtained with no distinct decrease in burning efficiency if compared with those doped in ordinary polar polymers or organic glasses. In the second case, intercalation of organic substances into a layered polysilicate induces the change of the layered structure to form a three-dimensional silicate network by condensation of silanol groups in adjacent layers. This phenomenon indicates that novel microporous materials with controlled pore sizes can be prepared through inorganic-organic nanocomposites.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
PublisherPubl by Materials Research Society
Pages335-346
Number of pages12
ISBN (Print)1558991816
Publication statusPublished - 1993 Jan 1
EventProceedings of the 3rd Biennial Meeting of Chemical Perspectives of Microelectronic Materials - Boston, MA, USA
Duration: 1992 Nov 301992 Dec 3

Publication series

NameMaterials Research Society Symposium Proceedings
Volume286
ISSN (Print)0272-9172

Other

OtherProceedings of the 3rd Biennial Meeting of Chemical Perspectives of Microelectronic Materials
CityBoston, MA, USA
Period92/11/3092/12/3

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Layered inorganic-organic nanocomposites: Application to photofunctional materials and conversion to inorganic microporous materials'. Together they form a unique fingerprint.

  • Cite this

    Kuroda, K., Ogawa, M., Yanagisawa, T., & Kato, C. (1993). Layered inorganic-organic nanocomposites: Application to photofunctional materials and conversion to inorganic microporous materials. In Materials Research Society Symposium Proceedings (pp. 335-346). (Materials Research Society Symposium Proceedings; Vol. 286). Publ by Materials Research Society.