Jie Wu, Mengquan Shi, Yuxia Zhao
2008
Citations
0
Influential Citations
29
Citations
Journal
Dyes and Pigments
Abstract
Abstract Five, asymmetrical benzylidene cyclopentanone dyes were synthesized and their one- and two-photon photophysical properties were investigated. Measurements revealed that the two-photon absorption cross-sections (TPACS) of these compounds in chloroform were of the order of 10 −48 cm 4 s molecule −1 photon −1 in the wavelength range 700–880 nm. The sensitizing efficiencies of the dyes in photopolymerization systems were also considerable and matching those of the commercial initiator o -Cl-hexaarylbisimidazoles (HABI). The two-photon polymerization results proved that these photosensitizers possess large potential for two-photon absorption induced polymerization.