合成了3个三苯胺-吡啶衍生物4-乙烯基吡啶-4'-(N,N-二苯胺基)苯(PPAB)、三[4-(4-吡啶乙烯基)苯]胺(TPPA)和4-(对-甲基-乙烯基吡啶碘盐)-4'-(N,N-二苯胺基)苯(PBPI),研究了它们的单光子荧光和三光子荧光性质.在1310nm飞秒激光激...合成了3个三苯胺-吡啶衍生物4-乙烯基吡啶-4'-(N,N-二苯胺基)苯(PPAB)、三[4-(4-吡啶乙烯基)苯]胺(TPPA)和4-(对-甲基-乙烯基吡啶碘盐)-4'-(N,N-二苯胺基)苯(PBPI),研究了它们的单光子荧光和三光子荧光性质.在1310nm飞秒激光激发下,化合物PPAB,PBPI and TPPA在二氯甲烷溶液中发出很强的三光子上转换荧光,荧光峰分别位于648,625,696nm.用飞秒Ti:Sapphire激光器非线性透过率法测得3个化合物在1310nm三光子吸收截面分别为1.91×10-79,3.46×10-79,3.64×10-79cm6·s2,它们具有很强的三光子吸收和光限幅效应.展开更多
In this study,linear absorption,single-photon excited fluorescence,fluorescence quantum yields,fluorescence lifetime and two-photon excited fluorescence of a series of triphenylamine derivatives (L1,L2,L3 and L4) have...In this study,linear absorption,single-photon excited fluorescence,fluorescence quantum yields,fluorescence lifetime and two-photon excited fluorescence of a series of triphenylamine derivatives (L1,L2,L3 and L4) have been measured.L1 and L3 are D--A type dyes,while L2 and L4 are D--D--A type dyes (D=donor,A=acceptor).The investigated compounds consist of triphenylamine-bearing donor-substituted and/or systematically extended-conjugated length,which are designed to gain insight into the effect of the ethoxyl unit and-linkage length on the linear and nonlinear optical properties.The influence of solvent polarity on the photophysical properties was investigated.Employing time-dependent density functional theory (TD-DFT) calculations,the structure-property relationships are discussed.展开更多
文摘合成了3个三苯胺-吡啶衍生物4-乙烯基吡啶-4'-(N,N-二苯胺基)苯(PPAB)、三[4-(4-吡啶乙烯基)苯]胺(TPPA)和4-(对-甲基-乙烯基吡啶碘盐)-4'-(N,N-二苯胺基)苯(PBPI),研究了它们的单光子荧光和三光子荧光性质.在1310nm飞秒激光激发下,化合物PPAB,PBPI and TPPA在二氯甲烷溶液中发出很强的三光子上转换荧光,荧光峰分别位于648,625,696nm.用飞秒Ti:Sapphire激光器非线性透过率法测得3个化合物在1310nm三光子吸收截面分别为1.91×10-79,3.46×10-79,3.64×10-79cm6·s2,它们具有很强的三光子吸收和光限幅效应.
基金supported by the National Natural Science Foundation of China (NSFC,21071001,51142011,21101001)Education Department of Anhui Province (KJ2010A030)the "211" Project of Anhui University
文摘In this study,linear absorption,single-photon excited fluorescence,fluorescence quantum yields,fluorescence lifetime and two-photon excited fluorescence of a series of triphenylamine derivatives (L1,L2,L3 and L4) have been measured.L1 and L3 are D--A type dyes,while L2 and L4 are D--D--A type dyes (D=donor,A=acceptor).The investigated compounds consist of triphenylamine-bearing donor-substituted and/or systematically extended-conjugated length,which are designed to gain insight into the effect of the ethoxyl unit and-linkage length on the linear and nonlinear optical properties.The influence of solvent polarity on the photophysical properties was investigated.Employing time-dependent density functional theory (TD-DFT) calculations,the structure-property relationships are discussed.
