Study of Carrier Dynamics in Poly (pyridopyrazine vinylene) using Picosecond Time-resolved Pump-Probe Spectroscopy

被引：0
|
作者：
Lee, Seung Mook [1 ]
Rhee, Bum Ku [1 ]
机构：
[1] Sogang Univ, Dept Phys, CPO Box 1142, Seoul 100611, South Korea
来源：
NONLINEAR OPTICS QUANTUM OPTICS-CONCEPTS IN MODERN OPTICS | 2006年 / 35卷 / 1-3期
关键词：
carrier dynamics; nonlinear optics; time-resolved pump-probe spectroscopy; semiconducting polymer; energy bandgap; photobleaching; photoinduced absorption;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We succeeded in polymerization of a n-type conjugated polymer, poly(pyridopyrazinevinylene). Its properties of nonlinear opticalabsorption and carrier dynamics of the excited states have been investigated by using picosecond time-resolved pump-probe spectroscopy. Optical bleaching and reverse saturable absorption were observed in the wavelength region above and below the bandgap, respectively. These results could be explained in terms of five-state model with three singlet and two triplet states.
引用
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页码：201 / 207
页数：7
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