e-Journal of Surface Science and Nanotechnology
Online ISSN : 1348-0391
ISSN-L : 1348-0391
Conference -ISSS-5-
Selective Formation of a Novel Dequenched Aggregates of Rhodamines: Comparison with J- and H-Aggregates
Akihiro TomiokaTakahiro AnzaiYasushi Kamiyama
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2009 Volume 7 Pages 89-92

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Abstract

Self-organized rhodamine aggregates prepared by wetting/dewetting process of an ethanol solution on a hydrophilic glass surface consistently exhibited fluorescence without quenching. Upon annealing, the aggregates exhibited an irreversible transition to quenched state, like H-aggregate, whereas the fluorescence spectrum was unchanged. The as grown fluorescent aggregate is a novel aggregate, neither a J-aggregate nor an H-aggregate, showing a blue-shifted excitation spectrum whereas the emission spectrum is similar to that of molecularly dispersed solution. This fluorescent aggregate was only realized in nonequilibrium by the rapid dewetting process. [DOI: 10.1380/ejssnt.2009.89]

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この記事はクリエイティブ・コモンズ [表示 4.0 国際]ライセンスの下に提供されています。
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