Study of photoluminescence and energy transfer properties of an organic dye salt doped thin films

被引：3
|
作者：
Xu Deng [1 ]
Ye Li-Hua [1 ]
Cui Yi-Ping [1 ]
Xi Jun [1 ]
Li Li [1 ]
Wang Qiong [1 ]
机构：
[1] SE Univ, Sch Elect Sci & Engn, Adv Photon Ctr, Nanjing 210096, Peoples R China
来源：
ACTA PHYSICA SINICA | 2008年 / 57卷 / 05期
关键词：
organic dye salt; fluorescent spectra; fluorescent lifetime; energy transfer;
D O I：
10.7498/aps.57.3267
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The photoluminescence and energy transfer properties based on an organic salt trans-4-[p-(N-ethyl-N-(hydroxylethyl)amino)phenylstyryl]-N-(hydroxyethyl)pyridinium iodide (ASPI) doped PVK thin film were investigated by steady-state and time-resolved fluorescent spectra. We observed that the emission intensity and the fluorescent lifetime of PVK reduced with increasing ASPI doping concentration due to the Forster energy transfer from PVK to ASPI, which is strongly correlated with an efficient spectral overlap between ASPI absorption and PVK emission. We also added some Alq3 into the doping system as energy carriers in order to increase the energy transfer efficiency from PVK to ASPI at low concentration, or there will be an evident decrease in photoemission efficiency due to the concentration quenching at high concentration. The dynamical process of energy transfer is discussed.
引用
收藏
页码：3267 / 3270
页数：4
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