Dynamics of the electric field-assisted charge carrier photogeneration in ladder-type poly(para-phenylene) at a low excitation intensity -: art. no. 107401

被引：77

作者：

Gulbinas, V

Zaushitsyn, Y

Sundström, V

Hertel, D

Bässler, H

Yartsev, A

机构：

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

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

[3] Univ Marburg, Ctr Mat Sci, D-35032 Marburg, Germany

[4] Lund Univ, Dept Chem Phys, SE-22100 Lund, Sweden

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.89.107401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electric field-assisted charge carrier photogeneration in a ladder-type methyl-substituted poly(paraphenylene) was investigated by ultrafast absorption spectroscopy at low excitation intensity. The dissociation of excitons into electron-hole pairs occurs from the vibrationally relaxed excited state throughout its lifetime and is caused by the applied electric field, rather than by existence of special "dissociation sites." These findings are of importance for material choice in device applications.

引用

页码：107401 / 107401

页数：4