Influence of the cyano-group on the optical properties of oligomeric PPV-derivatives

被引：34

作者：

Hanack, M ^{[1
]}

Behnisch, B ^{[1
]}

Häckl, H ^{[1
]}

Martinez-Ruiz, R ^{[1
]}

Schweikart, KH ^{[1
]}

机构：

[1] Univ Tubingen, Inst Organ Chem, D-72076 Tubingen, Germany

来源：

THIN SOLID FILMS | 2002年 / 417卷 / 1-2期

关键词：

electroluminescence; photoluminescence; PPV-derivatives; Knoevenagel reaction; distyrylbenzene;

D O I：

10.1016/S0040-6090(02)00591-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A series of oligomers analogous to poly (p-phenylenevinylene) (PPV 1) have been synthesized by various condensation reactions. Particular emphasis is placed upon the preparation of distyrylbenzenes with the electron-withdrawing cyano-group located in different positions of the conjugated system for comparison with the low band-gap polymer CN-PPV 2. Systematic variation of the location of the cyano-group allows us to tune the electronic as well as the optical properties. The electroluminescent behavior of the new emitting materials was studied in devices of the type ITO/copper phthalocyanine/oligomer/aluminium, showing a wide spectral range from blue-green to yellow, depending on the position of the cyano-group. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：26 / 31

页数：6

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