Excimers in light-emitting conjugated polymers

被引：11

作者：

Meng, HF ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Inst Phys, Hsinchu 300, Taiwan

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.58.3888

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic structures of the low-lying excited states for two parallel chains of poly (p-phenylene-vinylene) with arbitrary relative positions are studied. The interchain interaction is treated microscopically. The energy and charge transfer fraction of the (light-emitting) lowest singlet state are found to depend sensitively on the horizontal shift of the two chains, which is in turn determined by the packing geometry. Our predictions of the excimer-forming geometry and the relative (dipole-forbidden) photoluminescence lifetimes are in excellent agreement with experiments.

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页码：3888 / 3892

页数：5

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