Two step charge carrier generation in a ladder-type conjugated polymer

被引：13

作者：

Müller, JG

Scherf, U

Lemmer, U

机构：

[1] Univ Munich, Sekt Phys, Lehrstuhl Photon & Optoelekt, D-80799 Munich, Germany

[2] Max Planck Inst Polymerforsch, D-55129 Mainz, Germany

来源：

SYNTHETIC METALS | 2001年 / 119卷 / 1-3期

关键词：

time-resolved fast spectroscopy; photoinduced absorption spectroscopy; photoconductivity; detectors;

D O I：

10.1016/S0379-6779(00)01102-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two pulse femtosecond photocurrent experiments are performed on a conjugated polymer photodiode. With a photon energy of 3.1eV a first laser pulse excites singlet excitons. Photons absorbed from a time-delayed second pulse with a photon energy of 1.26eV lead to the excitation of higher lying states. The high dissociation rate for these states leads to an efficient two step carrier generation.

引用

页码：395 / 396

页数：2

共 4 条

[1] Nonlinear emission and recombination in conjugated polymer waveguides [J].