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Proceedings Paper

Diffusion of dye solution in the intermolecular nanostructure of polydimethylsiloxane
Author(s): Mitsunori Saito; Tatsuya Nishimura; Kohei Sakiyama; Michinori Nakagawa
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Paper Abstract

Polydimethylsiloxane (PDMS) contains a large, flexible free space between weakly-bonded molecules, which allows notable molecular diffusion. A toluene solution of diarylethene (photochromic dye) was mixed with a PDMS oil, and then the mixture was cured in a glass vessel by adding a curing agent. Violet laser (405 nm wavelength) irradiation induced an absorption band at around 530 nm, and consequently, the irradiated portion exhibited a red color. The colored portion gradually expanded to the entire sample because of diffusion of the dye molecules. This diffusion characteristic was used for improving an organic dye durability against a photo-induced degradation.

Paper Details

Date Published: 15 October 2012
PDF: 12 pages
Proc. SPIE 8456, Nanophotonic Materials IX, 84560M (15 October 2012); doi: 10.1117/12.928339
Show Author Affiliations
Mitsunori Saito, Ryukoku Univ. (Japan)
Tatsuya Nishimura, Ryukoku Univ. (Japan)
Kohei Sakiyama, Ryukoku Univ. (Japan)
Michinori Nakagawa, Ryukoku Univ. (Japan)

Published in SPIE Proceedings Vol. 8456:
Nanophotonic Materials IX
Stefano Cabrini; Taleb Mokari, Editor(s)

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