Two-Photon Absorption and Excited State Dynamics of Two Organic Molecules Containing Donor/Acceptor Moieties
Two-Photon Absorption and Excited State Dynamics of Two Organic Molecules Containing Donor/Acceptor Moieties作者机构：Depa. rtment of physics: Fudan University Shang. hai 200433 Surface Physics Lab (National Key Lab) Fudan University Shanghai 200433 Department of Physics Shanghai University. Shanghai 200444 College of Material Science and Engineering Suzhou University Suzhou 215021
出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)
年 卷 期：2008年第25卷第7期
页 面：2456-2459页
核心收录：
学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学]
基 金：Supported the Leading Academic Discipline Programme (T0104) the National Natural Science Foundation of China under Grant Nos 10374020 and 10674031 and the Seventh Graduate Students Innovation Foundation of Fudan University
主 题：NONLINEAR-OPTICAL PROPERTIES ULTRAFAST DYNAMICS CROSS-SECTIONS LIMITING PROPERTIES DATA-STORAGE CHROMOPHORES MICROFABRICATION TRIPHENYLAMINE FLUORESCENCE CORE
摘 要：Two new two-photon absorption （TPA） molecules, named SK-G1 and NT-G1, are synthesized and the photo- physical characteristics are investigated by using linear absorption spectra, one-photon fluorescence spectra and two-photon excited fluorescence spectra. Both the compounds exhibit TPA properties, and the TPA values determined by z-scan measurement are 10 GM and 39 GM for SK-G1 and NT-G1, respectively, at wavelength 80Ohm. Time-resolved spectroscopic techniques are employed to further explore the excited state dynamics of NT-G l with larger TPA cross section. The research results show that there is an ultrafast intraband energy transfer process （about 3ps） before the formation of charge transfer state with a relatively long lifetime.
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