Diffusion of dye solution in the intermolecular nanostructure of polydimethylsiloxane

Mitsunori Saito; Tatsuya Nishimura; Kohei Sakiyama; Michinori Nakagawa

doi:10.1117/12.928339

15 October 2012 Diffusion of dye solution in the intermolecular nanostructure of polydimethylsiloxane

Mitsunori Saito, Tatsuya Nishimura, Kohei Sakiyama, Michinori Nakagawa

Proceedings Volume 8456, Nanophotonic Materials IX; 84560M (2012) https://doi.org/10.1117/12.928339
Event: SPIE NanoScience + Engineering, 2012, San Diego, California, United States

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.

Citation Download Citation

Mitsunori Saito, Tatsuya Nishimura, Kohei Sakiyama, and Michinori Nakagawa "Diffusion of dye solution in the intermolecular nanostructure of polydimethylsiloxane", Proc. SPIE 8456, Nanophotonic Materials IX, 84560M (15 October 2012); https://doi.org/10.1117/12.928339

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