Dynamic Stark effect as a probe of the evolution of geminate electron-hole pairs in a conjugated polymer -: art. no. 233203

被引：21

作者：

Gulbinas, V

Kananavicius, R

Valkunas, L

Bässler, H

机构：

[1] Lithuania Acad Sci, Inst Phys, LT-2600 Vilnius, Lithuania

[2] Univ Marburg, Inst Phys Chem, D-35032 Marburg, Germany

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.66.233203

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transient absorption of methyl substituted ladder-type poly(para-phenylene) has been studied by means of picosecond pump-probe spectroscopy in the presence of an applied electric field. A transient Stark shift of the absorption band was observed and related to kinetics of generated excitons and electron-hole pairs. We demonstrate that dynamics of the Stark shift provide unique information on the charge redistribution in excited states, in particular, it allows us to monitor the charge separation distance during the exciton dissociation into electron-hole pairs.

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页码：1 / 4

页数：4

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