SPECIAL ISSUE ON THE ASIAN SYMPOSIUM ON NANOTECHNOLOGY AND NANOSCIENCE 2002 (ASIANANO 2002); EDITED BY MASATSUGU SHIMOMURA AND TERUYA ISHIHARANo Access

SIZE EFFECT OF CYANINE DYE J-AGGREGATES IN MICROMETER-SIZED POLYMER "DOMES"

OLAF KARTHAUS

Department of Photonics Material Science, Chitose Institute of Science and Technology, Bibi 65-758, Chitose, 066-8655, Japan

PRESTO, JST, Chiyodaku, Tokyo, Japan

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KIYOSHI OKAMOTO

Department of Photonics Material Science, Chitose Institute of Science and Technology, Bibi 65-758, Chitose, 066-8655, Japan

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RYOTA CHIBA

Department of Photonics Material Science, Chitose Institute of Science and Technology, Bibi 65-758, Chitose, 066-8655, Japan

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KAZUAKI KAGA

Graduate School of Photonics Material Science, Chitose Institute of Science and Technology, Bibi 65-758, Chitose, 066-8655, Japan

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https://doi.org/10.1142/S0219581X02000504Cited by:4 (Source: Crossref)

Abstract

The fluorescence behavior of 3,3′diethyl-thiacarbocyanine iodide in micrometer-sized polystyrene droplets, or "domes" on glass substrates was investigated. The samples were prepared by casting dilute polymer/dye solutions onto the substrates. A dewetting process leads to the formation of small polymer domes with a diameter of 1–100 μm and a height of 100 nm to several μm. Fluorescence microscopy shows that the dye is incorporated into these polymer domes. It was found that the absorption and fluorescence spectra depend on the size of the polymer domes. Larger domes show red-shifted fluorescence spectra.

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