Photophysical properties and photostability of novel unsymmetric polycyclicphenazine-type D-π-A fluorescent dyes and the dye-doped films
作者:Haruka Egawa Ooyama、Akiko Hayashi、Toshiki Mamura、Takashi Ide、Toshihiko Hino、Takuya Tanigami、Katsuhira Yoshida
DOI:10.1016/j.jphotochem.2011.12.009
日期:2012.2
Structural isomers of unsymmetric polycyclicphenazine-type D-pi-A fluorescent dyes have been newly synthesized and characterized in both solution and polymer films. The dyes exhibited two strong absorption bands at around 328-401 rim and 516-532 nm, and an intense fluorescence band at around 595-629 nm (phi = 0.32-0.84) in 1,4-dioxane. The dye-doped polymer films showed good ability of wavelength conversion; the films can efficiently convert ultraviolet and green-yellow lights into red light (phi=0.43-0.86). Moreover, the photostability of the dyes-doped PS. PMMA. and PLA films has been investigated. (C) 2011 Elsevier B.V. All rights reserved.