Novel Photoinitiators for Microfabrication of Two-Photon Induced Polymerization
We designed and synthesized two novel V-shaped of A-π-D-π-A photoinitiators, 3,6-bis2-(4-nitrophenyl)ethynyl-9-benzy-carbazole (BNBC) and 3,6-bis2-(4-nitro phenyl)ethynyl-9-(methoxybenzyl)-carbazole (BNMBC) for two-photon induced polymerization (TPIP). The two photoinitiators have large TPA cross-sections and similar two-photon polymerization thresholds in a resin with the concentration of 0.1 wt%. We also found that the methoxybenzyl group of BNMBC plays an important role in the TPIP process, which deactivated the radical growth reaction in the polymerization. As a result, the resin initiated by BNMBC obtained a linewidth much thinner than that initiated by BNBC in TPIP fabrication. The concept of combination of a radical quenching group and large TPA cross-section within one photoinititor could be expected to improve the 3D microfabrication precision of TPIP.
Weier Lu Xianzi Dong Weiqiang Chen Xuanming Duan
Laboratory of Organic NanoPhotonics, Technical Institute of Physics andChemistry, Chinese Academy of Laboratory of Organic NanoPhotonics, Technical Institute of Physics and Chemistry, Chinese Academy o Laboratory of Organic NanoPhotonics, Technical Institute of Physics and Chemistry, Chinese Academy
国际会议
The 31st International Congress on Imaging Science(第31届国际影像科学大会 ICIS2010)
北京
英文
847-849
2010-05-12（万方平台首次上网日期，不代表论文的发表时间）