Geminate pair recombination in a conjugated polymer

被引：44

作者：

Schweitzer, B

Arkhipov, VI

Scherf, U

Bässler, H ^{[1
]}

机构：

[1] Univ Marburg, Inst Phys Kern & Makromol Chem, D-35032 Marburg, Germany

[2] Univ Marburg, Wissensch Zentrum Mat Wissensch, D-35032 Marburg, Germany

[3] Katholieke Univ Leuven, Lab Halfgeleiderfys, B-3001 Heverlee, Belgium

[4] Max Planck Inst Polymerforsch, D-55128 Mainz, Germany

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 313卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(99)01014-3

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：

Upon laser excitation into the S-1 --> S-0 transition, delayed luminescence from methyl-substituted ladder-type poly-paraphenylene has been observed. It varies linearly with Light intensity, decays according to a power law, I-DF proportional to t(-0.8+/-0.1), and its spectrum consists of an intrinsic and a defect fluorescence band as well as a phosphorescence component. Since the delayed fluorescence part can be quenched by an electric field after excitation, but not the phosphorescence, it must originate from geminate electron-hole recombination rather than from triplet-triplet annihilation. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：57 / 62

页数：6

共 23 条

[1] Direct determination of the exciton binding energy of conjugated polymers using a scanning tunneling microscope [J].