Size control of cyanine dye J-aggregates in micrometersized polymer "domes"

被引：0
|
作者：
Kaga, K [1 ]
Okamoto, K
Chiba, R
Karthaus, O
机构：
[1] Chitose Inst Sci & Technol, Grad Sch Photon Sci, Bibi, Chitose 0668655, Japan
[2] Fac Photon Sci, Chitose Inst Sci & Technol, Bibi, Chitose 0668655, Japan
来源：
KOBUNSHI RONBUNSHU | 2002年 / 59卷 / 10期
关键词：
fluorescence spectra; J-aggregates; dewetting; size effect;
D O I：
10.1295/koron.59.661
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The fluorescence behavior of 3,3'-diethyl -9-methylthiacarbocyanine iodide in gm-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 1similar to100 mum and a height of 100 nm to several pm. Fluorescence microscopy shows that the dye is incorporated into these polymer domes. The absorption and fluorescence spectra depend on the : size of the polymer domes. Larger domes show red-shifted fluorescence spectra.
引用
收藏
页码：661 / 664
页数：4
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