Dendritic sidegroups as three-dimensional barriers to aggregation quenching of conjugated polymer fluorescence

被引：146

作者：

Jakubiak, R

Bao, Z

Rothberg, L ^{[1
]}

机构：

[1] Univ Rochester, Dept Chem, Rochester, NY 14627 USA

[2] Univ Rochester, NSF, Ctr Photoinduced Charge Transfer, Rochester, NY 14627 USA

[3] Lucent Technol, Bell Labs, Murray Hill, NJ 07974 USA

来源：

SYNTHETIC METALS | 2000年 / 114卷 / 01期

关键词：

dendritic sidegroups; three-dimensional barriers; conjugated polymer fluorescence;

D O I：

10.1016/S0379-6779(00)00225-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the photophysics of poly-phenylenevinylene (PPV) polymers with large dendritic sidegroups under both isolated chain and aggregated chain conditions. Aggregation causes a substantial reduction in photoluminescence (PL) quantum yield but that decrease is ameliorated by the attachment of an additional generation of dendron to the PPV backbone. Three-dimensional separation of chromophores can be achieved with these sidegroups and the formation of nearly nan-emissive interchain excitations leads to a factor of four enhancements in solid-state PL. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：61 / 64

页数：4

共 22 条

[1] Poly(phenylenevinylene)s with dendritic side chains: Synthesis, self-ordering, and liquid crystalline properties [J].