Synthesis, photophysical properties and two-photon absorption of benzothiazole/benzoxazole π-expanded carbazole dyes
作者:Lei Sun、Xiaoyu Wang、Paul Fleurat-Lessard、Claude P. Gros、Frédéric Bolze、Haijun Xu
DOI:10.1016/j.dyepig.2022.110447
日期:2022.8
different carbazole substituents. The photophysicalproperties of these molecules were investigated in several solvents of different polarity by UV–vis absorption and fluorescence spectroscopy. These dyes show strong absorption bands in the near ultraviolet region, fluorescence emission with high quantum yields in the blue-green as well as large Stokes' shifts. Two-photon absorption properties were recorded