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Spectroscopic Characteristics of Hyperbranched Conjugated Polymers Studied by One- and Two-Photon Excitations
Zhi Yang,Na Li,An-dong Xia*,Qing-guo He,Hong-zhen Lin,Feng-lian Bai
Author NameAffiliationE-mail
Zhi Yang State Key Laboratory of Molecular Reaction Dynamics, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China  
Na Li State Key Laboratory of Molecular Reaction Dynamics, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China  
An-dong Xia* State Key Laboratory of Molecular Reaction Dynamics, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China andong@iccas.ac.cn 
Qing-guo He Key Laboratory of Organic Solids, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China  
Hong-zhen Lin Key Laboratory of Organic Solids, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China  
Feng-lian Bai Key Laboratory of Organic Solids, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China  
Abstract:
Spectroscopic properties of new hyperbranched conjugated polymers functionalized in periphery with N,N-dimethylaniline and tert-butyl-benzene as terminal groups are investigated by one- and two-photon excitations. The absorption, °uorescence excitation and emission spectra are examined in chloroform and N,N-dimethylformamide. The two-photon excitation measurements show that the new hyperbranched conjugated polymer possesses large two-photon excitation cross section which makes it a very attractive candidate for the potential application as nonlinear optical materials. As an example, the two-photon induced three-dimensional data storage is also demonstrated.
Key words:  Hyperbranched conjugated polymer, Two-photon excitation cross section, Two-photon induced optical data storage
FundProject:国家自然科学基金
单光子和双光子激发的超歧化聚合物的光谱学特性研究
杨智,丽娜,夏安东*,贺庆国,蔺洪振,白凤莲
摘要:
研究了二种新型超歧化聚合物在氯仿和二甲基甲酰胺溶剂中的飞秒激光单光子和双光子激发的光谱学特性.这二种聚合物是以苯为核、以对二甲氧基苯为连接单元,分别以二甲基苯胺为端基或以特丁基苯为端基的超歧化共轭聚合物.结果表明这种超歧化聚合物具有较大的溶剂极性相关的飞秒双光子吸收截面,不同的端基不仅影响分子内的电荷转移,而且导致超歧化分子共轭程度的变化.作为一种潜在的光学非线性材料,利用这种大的双光子吸收截面的超歧化聚合物可实现了飞秒双光子直写的三维高密度数据存储.
关键词:  超歧化聚合物,双光子激发截面,双光子激发诱导的光学数据存储
DOI:10.1088/1674-0068/20/04/500-508
分类号: