Influence of the interlayer interactions on aggregates in organic molecular films

被引:4
作者
Wang, WJ [1 ]
Xu, JH
Lu, XZ
Han, K
Wang, GM
Wang, WC
机构
[1] Fudan Univ, Dept Phys, State Key Lab Mat Modificat Laser Ion & Electron, Shanghai 200433, Peoples R China
[2] Zhongshan Univ, State Key Lab Ultrafast Laser Spect, Guangzhou 510275, Peoples R China
关键词
Langmuir-Blodgett (LB) multilayers; aggregate; time-resolved fluorescence;
D O I
10.3866/PKU.WHXB19990517
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Influence of the interlayer interactions on aggregates in Y-type Langmuir-Blodgett multilayers was investigated by using steady-state and time-resolved fluorescence techniques, As the interlayer interactions was screened by arachidic acid layers, intralayer interaction of hemicyanine molecules caused formation of H-aggregates and a blue shift of the fluorescence band in interleaving hemicyanine/arachidic acid multilayers, In pure Y-type hemicyanine multilayers, however, the molecules mainly formed J-aggregates leading to a significant red shift of fluorescence band and a larger scale of aggregates due to the stronger interlayer interactions.
引用
收藏
页码:471 / 475
页数:5
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