FEMTOSECOND ENERGY RELAXATION IN PI-CONJUGATED POLYMERS

被引：399

作者：

KERSTING, R

LEMMER, U

MAHRT, RF

LEO, K

KURZ, H

BASSLER, H

GOBEL, EO

机构：

[1] UNIV MARBURG,FACHBEREICH PHYS,W-3550 MARBURG,GERMANY

[2] UNIV MARBURG,FACHBEREICH PHYS CHEM,W-3550 MARBURG,GERMANY

[3] UNIV MARBURG,ZENTRUM MAT WISSENSCHAFT,W-3550 MARBURG,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.70.3820

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ultrafast relaxation processes in poly(p-phenylenevinylene) and its oligomers are investigated using femtosecond luminescence spectroscopy. A quasi-instantaneous luminescence rise and the absence of luminescence near the excitation energy indicate very rapid vibronic relaxation. The subsequent transient redshift of the spectra is attributed to ultrafast energy relaxation of optical excitations within an inhomogeneously broadened density of states.

引用

页码：3820 / 3823

页数：4

共 24 条

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