| 光谱学与光谱分析 |
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| Study on Microstructure of J-Aggregates of Cyanine Dyes |
| MENG Tao1, KANG Ling-hua4, ZHOU Hui1, ZHANG Ao1, WANG Du-jin2, 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, Institute of Chemistry, 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 J-aggregate structures of three types of cyanine dyes adsorbed both on 0.4 μm AgBrI cubic crystal surface (100) and on 1.8 μm AgBrI tabular crystal surface (111) were studied by use of atomic force microscope (AFM). Several types of aggregation structures were observed for the three types of dyes on AgBrI crystals. Rectangular structure was formed on the crystal faces of (100) and (111) for both anionic and cationic cyanine dyes. On the surface of anionic-cationic cyanine dyes, however, herringbone stacking structure was formed, and a banded spectrum was correspondingly detected on the AgBrI crystal surface.
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Received: 2009-11-18
Accepted: 2010-02-20
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Corresponding Authors:
MENG Tao
E-mail: tmeng@iccas.ac.cn
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