Two-photon absorption in V-type chromophores with electron-rich heterocyclevinylene bridges  

作　　者：LI QianQian ZHONG AoShu LIU HaiJie PENG Ming LIU Jun PEI ZhiGuo HUANG ZhenLi QIN JinGui LI Zhen 

机构地区：[1]Department of Chemistry,Hubei Key Laboratory on Organic and Polymeric Opto-Electronic Materials,Wuhan University,Wuhan 430072,China [2]Key Laboratory of Biomedical Photonics of Ministry of Education Huazhong University of Science and Technology,Wuhan 430074,China

出　　处：《Science China Chemistry》2011年第4期625-630,共6页中国科学（化学英文版）

基　　金：the National Natural Science Foundation of China (21002075 and 21034006) for financial support

摘　　要：A series of V-type chromophores with electron-rich heterocyclevinylene bridges have been synthesized via Wittig-Horner-Emmons and Vilsmeier reactions.All the target chromophores showed strong one-photon and two-photon excited emission,and their electron properties could be tuned by using different heterocycles such as furan,thiophene and pyrrole moieties in I-III.The maximum two-photon absorption (TPA) cross sections occurred at 760 nm and were measured to be in the range of 400-800 GM.A series of V-type chromophores with electron-rich heterocyclevinylene bridges have been synthesized via Wittig-Horner-Emmons and Vilsmeier reactions.All the target chromophores showed strong one-photon and two-photon excited emission,and their electron properties could be tuned by using different heterocycles such as furan,thiophene and pyrrole moieties in I-III.The maximum two-photon absorption （TPA） cross sections occurred at 760 nm and were measured to be in the range of 400-800 GM.

关 键 词：two-photon absorption ELECTRON-RICH HETEROCYCLE CHROMOPHORE 

分 类 号：O437[机械工程—光学工程] TQ463.4[理学—光学]