光谱学与光谱分析 |
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Fluorescence Spectra of J-Aggregates of Anionic-Cationic Cyanine Dyes |
MENG Tao1,XU Duan-fu2,WANG Du-jin2,KANG Ling-hua4,LI Xiao-wei3,ZOU Jing4 |
1. Beijing Institute of Graphic Communication, Physical Laboratory, Beijing 102600, China 2. State Key Laboratory of Polymer Physics and Chemistry, Joint Laboratory of Polymer Science and Materials, Institute ofChemistry, the Chinese Academy of Sciences, Beijing 100080, China 3. College of Physical Science and Technology, Hebei University, Baoding 071002, China 4. China Lucky Film Co., Baoding 071054, China |
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Abstract In the present paper, the fluorescence spectral curves of J-aggregates of two kinds of anionic-cationic cyanine dyes adsorbed on AgIBr cubic microcrystals were measured by using fluorescence spectroscopy, and compared with the sensitivity characteristic of anionic-cationic cyanine dyes. The results show that the peaks of fluorescence spectral curves of anionic-cationic cyanine dyes were lower than that of anionic and cationic cyanine dyes, and the higher sensitivity efficiency was due to the fact that more electrons transfer to the surface of AgIBr microcrystal.
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Received: 2007-05-10
Accepted: 2007-08-20
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Corresponding Authors:
MENG Tao
E-mail: tmeng@iccac.ac.cn
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