Influence of an external magnetic field on the singlet and triplet emissions of tris-(8-hydroxyquinoline)aluminum(III) (Alq3) -: art. no. 104507

被引：46

作者：

Gärditz, C ^{[1
]}

Mückl, AG ^{[1
]}

Cölle, M ^{[1
]}

机构：

[1] Univ Bayreuth, BIMF, D-95440 Bayreuth, Germany

来源：

JOURNAL OF APPLIED PHYSICS | 2005年 / 98卷 / 10期

关键词：

D O I：

10.1063/1.2132512

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of a magnetic field on the triplet emission in Alq(3) was investigated by measuring the delayed electroluminescence (EL) and the phosphorescence in Alq(3)-based organic light-emitting diodes and amorphous films, respectively. The change of the delayed EL intensity in amorphous Alq(3) is explained by Merrifield's theory of mutual triplet-triplet annihilation known for molecular crystals. The intensity of the instantaneous EL shows an increase of up to +4.8% depending on the magnetic-field strength, which is due to the influence of the magnetic-field on the charge balance factor and thus on the injection of minority charge carriers. (c) 2005 American Institute of Physics.

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页数：4

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