DYNAMICS OF PHOTOEXCITATIONS IN ELECTRIC-FIELDS IN POLY(P-PHENYLENEVINYLENE) DIODES

被引：32
作者：
LEMMER, U
KARG, S
SCHEIDLER, M
DEUSSEN, M
RIESS, W
CLEVE, B
THOMAS, P
BASSLER, H
SCHWOERER, M
GOBEL, EO
机构：
[1] UNIV MARBURG,FACHBEREICH PHYS CHEM,D-35032 MARBURG,GERMANY
[2] UNIV MARBURG,ZENTRUM MAT WISSENSCH,D-35032 MARBURG,GERMANY
[3] UNIV BAYREUTH,INST PHYS,D-95440 BAYREUTH,GERMANY
[4] UNIV BAYREUTH,BAYREUTHER INST MAKROMOLEK FORSCH,D-95440 BAYREUTH,GERMANY
来源：
SYNTHETIC METALS | 1994年 / 67卷 / 1-3期
关键词：
DYNAMICS; PHOTOEXCITATIONS; DIODES; POLY(P-PHENYLENEVINYLENE);
D O I：
10.1016/0379-6779(94)90034-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report on a study of the dissociation of neutral photo excitations in electric fields in ITO/poly(p-phenylenevinylene) (PPV)/Al diodes. This process leads simultaneously to photoconductivity and field-induced quenching of the photoluminescence. By illuminating the samples through the different contacts we show that the high electric fields are restricted to a region close to the Al layer as characteristic for a Schottky diode. Time-resolved luminescence measurements show that the dissociation takes place on a picosecond time scale. The experimental data are compared with a Monte-Carlo simulation of the dynamics of photoexcitations created in a disorder-broadened density of states.
引用
收藏
页码：169 / 172
页数：4
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