Electroluminescence of (styrene-co-acrylic acid) ionomer/conjugated MEH-PPV blends

被引：15

作者：

Cossiello, Rafael F. ^{[1
]}

Cirpan, Ali ^{[2
]}

Karasz, Frank E. ^{[2
]}

Akcelrud, Leni ^{[3
]}

Atvars, Teresa D. Z. ^{[1
]}

机构：

[1] Univ Estadual Campinas, Inst Quim, BR-13084971 Campinas, SP, Brazil

[2] Univ Massachusetts, Conte Res Ctr, Dept Polymer Sci & Engn, Amherst, MA 01003 USA

[3] Univ Fed Parana, Dept Quim, Ctr Politecn, BR-81531990 Curitiba, Parana, Brazil

来源：

SYNTHETIC METALS | 2008年 / 158卷 / 06期

基金：

巴西圣保罗研究基金会;

关键词：

MEH-PPV; electroluminescence; polymer blend;

D O I：

10.1016/j.synthmet.2008.01.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work reports the electroluminescence of poly[2-methoxy-5(2'-ethylhexyloxy)-p-phenylenevinylene] (MEH-PPV) and poly(styrene-co-acrylic acid-co-1-pyrenylmethyl methacrylate) (SAA) blends in ratios from 0 to 100 wt.% in mass of MEH-PPV. The styrene-co-acrylic copolymer was synthesized with 3 mol% of acrylic acid units to simultaneously enhance blend miscibility and charge transport in MEH-PPV. The morphology was studied using epifluorescence microscopy and scanning electron microscopy in which the pyrenyl-labeled copolymer is used to enhance microscopic contrast. Device performances were compared: those using MEH-PPV have a turn-on voltage of 3.5 V, luminance of 500 cd/m(2) and current density of 430mA/cm(2) at 5 V, while MEH-PPV blended with 50 wt.% styrene-acrylic copolymer showed a turn-on voltage of 2.5 V, a luminance of 2300 cd/A and a current density of 640 mA/cm(2) at 5 V (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：219 / 225

页数：7

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