Fluorescence Study on Organic Nanoparticles Prepared with ABCV-Th
作者:Dong Myung Shin
DOI:10.1080/15421400802328766
日期:2008.9.30
We have synthesized a new red fluorescent material (2E, 2'E)-3,3'-[4,4 ''-bis(dimethylamino)-1,1':4',1 ''-terphenyl-2',5'-diyl]bis[2-(2-thienyl)acrylonitrile] (ABCV-Th). Nonplanar structure of ABCV-Th resists on the concentration quenching, which is induced from dipole-dipole interactions and effective -stacking in condensed states. Accordingly, ABCV-Th well exhibited photoluminescence in solid state. Intramolecular charge transfer (ICT) excited states of ABCV-Th were sensitive to the solvent polarity, and that exhibited bathochromic shift in polar solvents. Nanoparticles were prepared by using the reprecipitation method. The FE-SEM image reveals the size and physical characteristic of the nanoparticles.