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《CHINESE JOURNAL OF LUMINESCENCE》 2000-01
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Types and Fluorescence Characteristics of Aggregates in Langmuir-blodgett Multilayers

WANG Wen jun, XU Jian hua, LIU Xiu, JIANG Yong qiang, WANG Gong ming, LU Xing ze, (State Key Joint Laboratory for Materials Modification by Laser, Ion and Electron Beams, Department of Physics, Fudan University, Shanghai 200433, China) CAI Zhi  
Aggregation features of molecules in various types of Langmuir Blodgett (LB) multilayers were investigated by using the steady state and time resolved fluorescence techniques. The fluorescence peak of interleaving hemicyanine/arachidic acid multilayers is at 598nm which shows a significant blue shift with respect to that of hemicyanine(615nm) in solution. As the interlayer interactions were screened by arachidic acid layers, intralayer interaction of hemicyanine molecules caused the formation of H aggregates in interleaving hemicyanine/arachidic acid multilayers. However, the fluorescence peaks of pure Y and Z type hemicyanine multilayers are at 645nm and 635nm , respectively. It indicated that the molecules mainly formed J aggregates which lead to a significant red shift of fluorescence band due to the stronger interlayer interactions. It indicated that the interlayer interaction would be stronger than the intralayer interaction because of the lack of the screening of AA and the inclination angle θ would be reduced (close to 0), which caused J type aggregation. The temporal profile could be well fitted by the model. The lifetime, relative amplitudes of the components and molecular numbers in an aggregate were deduced, Notice that the molecular numbers and amplitudes of the aggregates in the pure hemicyanine samples were larger than that in LB interleaving films.
【CateGory Index】: O657.3
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【References】
Chinese Journal Full-text Database 1 Hits
1 LI Zong-yao1,LI Jian-hui2,ZHAO Chun-mei1,WANG Hua1(1.Key Lab for Special Functional Materials of Ministry of Education,Henan University,Kaifeng 475004,Henan,P.R.China;2.Pingdingshan Education College,Pingdingshan 467000,Henan,P.R.China);Synthesis and Spectroscopic Behavior of 4-(Anthracen-9-yl)-6-(hexadecyloxy)-1,3,5-triazin-2-amine[J];Imaging Science and Photochemistry;2009-05
【Co-references】
Chinese Journal Full-text Database 4 Hits
1 LI Jian-zheng1,WANG Jun2,CHI Shao-ming2,FU Wen-fu1,2(1.College of Chemistry and Chemical Engineering,Yunnan Normal University,Kunming 650092,Yunnan,P.R.China;2.Technical Institute of Physics and Chemistry,the Chinese Academy of Sciences,Beijing 100080,P.R.China);The Synthesis and Study of Novel Water-Soluble PAMN Derivatives as Fluorescent Probe Material[J];Imaging Science and Photochemistry;2008-01
2 Xie Zhonghui,Huang Chun,Huang Xinbang,Chen Yingyu,Wen Jinhui,Zou Yongde,Lin Weizhu Department of Physics,Zhongshan University,Guangzhou,510275 Zhang Lingzhi,Liang Zhaoxi Institute of Polymer Science,Zhongshan University,Guangzhou,510275 Received dat;THE EFFECTS OF LIGHT INDUCED ISOMERIZATION AND MOLECULAR CHAIN ORIENTATION IN AZOBENZENE POLYMERS[J];ACTA PHOTONICA SINICA;1998-08
3 Wang Hua ;Zhang Baowen; Cao Yi; Xu Li (chemistry and chemical engineering college of Henan University, Kaifeng 475001, P. R. Chian)(Lab of photochanistry. Institute of Photographic Chemistry,Chinese Academy of Sciences, Beijnig 100101 , P. R. China);A Study of Spectroscopic Behavior of Anthracene Substituted by Dicyanovinyl in Different Positions[J];CHEMICAL RESEARCHES;1997-03
4 ZHOU Jiang-ming,CHENG Lu-ming,JIA Hong-tao (College of Resources and Environment,Xinjiang Agricultural University,Urumqi 830052,China);Development of Microtechnique Research[J];Xinjiang Agricultural Sciences;2006-S1
【Secondary References】
Chinese Journal Full-text Database 1 Hits
1 LI Chun-li1,LI Zong-yao1,XU Li2,HAN Hui1,WANG Hua1,2(1.Key Lab for Special Functional Materials of Ministry of Education,Henan University,Kaifeng 475004, Henan,P.R.China;2.College of Chemistry and Chemical Engineering,Henan University,Kaifeng 475004,Henan,P.R.China);Synthesis of 4-(anthracen-9-yl)-6-(octyloxy)-1,3,5-triazin-2-amine and its Spectroscopic Behavior in Acid Medium[J];Imaging Science and Photochemistry;2011-01
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