Hybrid films consisting of a clay and a diacetylenic, two-photon absorptive dye
Suzuki, Yasutaka (Yamaguchi University. Department of Chemistry)
Kirakawa, Shoichiro (Yamaguchi University. Department of Chemistry)
Sakamoto, Yusuke (Yamaguchi University. Department of Chemistry)
Kawamata, Jun (Yamaguchi University. Department of Chemistry)
Kamada, Kenji (National Institute of Advanced Industrial Science and Technology)
Ohta, Koji (National Institute of Advanced Industrial Science and Technology)

Date:	2008
Abstract:	Hybrid films consisting of Sumecton SA smectite (SSA) and a diacetylenic two-photon absorptive dye; 1,4-bis(2,5-dimethoxy-4-{2-[4-(N-methyl)pyridinium]ethenyl}phenyl) butadiyne triflate (MPPBT) were fabricated. The MPPBT-clay composites were prepared by the cation exchange method in a dimethylsulfoxide (DMSO)-water mixed solvent. A low-light-scattering film, suitable for use in optical devices, was obtained by filtration of the dispersion of the MPPBT-clay composites. Estimation of the two-photon absorption cross-section (σ) by means of the open-aperture Z-scan technique was performed using the present film. The σ value of MPPBT in the film fabricated at the MPPBT loading levels vs. 20% cation exchange capacity was 1030 GM (1 GM = 1 × 10 cm s photon molecule) at an excitation wavelength of 800 nm. The value was 1. 3 times greater than the maximum value of the σ of MPPBT dissolved in DMSO without clay.
Rights:	Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Diacetylenic Dye ; Film ; Synthetic Saponite ; Two-photon Absorption
Published in:	Clays and Clay Minerals, Vol. 56, Núm. 5 (2008) , p. 487-493, ISSN 1552-8367

DOI: 10.1346/CCMN.2008.0560501

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