Emitting polymers containing cyano groups. Synthesis and photophysical properties of a fully conjugated polymer obtained by Wittig reaction

被引：40

作者：

Pinto, MR

Hu, B

Karasz, FE ^{[1
]}

Akcelrud, L

机构：

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

[2] Univ Fed Parana, Ctr Politecn, Dept Quim, BR-81531900 Curitiba, Parana, Brazil

来源：

POLYMER | 2000年 / 41卷 / 22期

关键词：

electroluminescent polymers; cyano polymers; photoluminescent polymers;

D O I：

10.1016/S0032-3861(00)00162-2

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A new electroluminescent fully conjugated, substituted PPV-related structure was synthesized. The ring-substituted units (2,5 hexadecyloxy and 2,5 cyano) were interspersed by one non-substituted PPV unit. The EL emission was centered at 612 nm (orange). Double layer devices using PPV as a hole-transporting material showed 3000 cd/m(2) at a 20 V bias. In addition to the better transport characteristics imparted by the PPV layer, Forster transfer at the interface provided a better light output in these devices in comparison with single layer LEDs. Increases in PPV thickness yielded a slight blue shift suggesting that emission from the bulk PPV was occurring as well. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：8095 / 8102

页数：8

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