LIU Yun-long, WANG Wen-jun, GAO Xue-xi, LI Yun, LI Shu-hong, WANG Hui-lin. Study on Fluorescence Properties of Sandwich Bisphthalocyanine Terbium[J]. Chinese Journal of Luminescence, 2008,29(1): 67-70
LIU Yun-long, WANG Wen-jun, GAO Xue-xi, LI Yun, LI Shu-hong, WANG Hui-lin. Study on Fluorescence Properties of Sandwich Bisphthalocyanine Terbium[J]. Chinese Journal of Luminescence, 2008,29(1): 67-70DOI:
The steady-state fluorescence and time-resolved fluorescence spectra properties of bisphthalocyanines terbium chloroform solution were investigated. The influences of excitation wavelength and concentration on the spectral properties were discussed. The experimental results indicated that the bisphthalocyanines terbium chloroform solution have strong fluorescence emission peaked at 707 nm. And it corresponds to the electrons’ transition from excitation states S
1
to ground states S
0
. With the different excitation wavelength
the intensity of emission spectra has a large change
but the position of emission peak does not change. The fluorescence emission peak at 707 nm of bispthtalocyanine terbium has two component lifetimes
the short-lifetime belongs to monomer
and long-lifetime belongs to H-aggregation. Along with the reduction of concentration
the proportion of monomer will increase
and the proportion of short-lifetime will increase too.