Author/Authors :
Tian، نويسنده , , Yupeng and Zhang، نويسنده , , Mingliang and Yu، نويسنده , , Xiaoqiang and Xu، نويسنده , , Guibao and Ren، نويسنده , , Yan and Yang، نويسنده , , Jiaxiang and Wu، نويسنده , , Jieying and Zhang، نويسنده , , Xuanjun and Tao، نويسنده , , Xutang and Zhang، نويسنده , , Shengyi and Jiang، نويسنده , , Minhua، نويسنده ,
Abstract :
Two novel two-photon polymerization initiators, 10-ethyl-3-E-(4-(N,N′-di-n-butylamino)styryl)phenothiazine 5 and 10-ethyl-3,7-E,E-bis(4-(N,N′-di-n-butyl amino)styryl)phenothiazine 6, have been efficiently synthesized with room temperature solid phase Wittig reaction. Two initiators were found to exhibit good single-photon fluorescence emission and their quantum yields, lifetimes and solvent effects have been studied in detail. Two-photon fluorescence spectra were investigated under 800 nm fs laser pulse and two-photon absorption (TPA) cross-sections of the initiators have been evaluated by theoretical calculation.Two-photon initiating polymerization microfabrication experiments have been carried out and artificial defects were made and polymerization mechanism was also discussed.
