Femtosecond fluorescence up-conversion microscopy:: Exciton dynamics in α-perylene microcrystal

被引：28
作者：
Fujino, T [1 ]
Tahara, T [1 ]
机构：
[1] RIKEN, Inst Phys & Chem Res, Mol Spect Lab, Wako, Saitama 3510198, Japan
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2003年 / 107卷 / 22期
关键词：
D O I：
10.1021/jp034037s
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The femtosecond fluorescence up-conversion microscope has been developed. This new method was applied to the study of exciton dynamics in an organic microcrystal, perylene. Taking advantage of femtosecond time-resolution and nanometer space-resolution, the fluorescence from microcrystals was clearly time-resolved and the ultrafast relaxation dynamics of the free exciton and the Y state was clarified at room temperature. It was found that the exciton dynamics significantly depends on the position in the microcrystal, reflecting the spatial distribution of the defect.
引用
收藏
页码：5120 / 5122
页数：3
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