Absorption spectra and electrophotographic properties of squarylium dyes containing a nitro group

被引：20

作者：

Hwang, SH

Kim, NK

Koh, KN

Kim, SH ^{[1
]}

机构：

[1] Kyungpook Natl Univ, Coll Engn, Dept Dyeing & Finishing, Taegu 702701, South Korea

[2] Kyungpook Natl Univ, Sensor Technol Res Ctr, Taegu 702701, South Korea

来源：

DYES AND PIGMENTS | 1998年 / 39卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

electrophotographic; dark decay; photosensitivity; squarylium dye; organic photoreceptor;

D O I：

10.1016/S0143-7208(98)00021-7

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Squarylium dye containing a nitro group, absorbs at 676 nm in chloroform and showed a bathochromic shift of 22 nm in comparision to the unsubstituted analogue. The reaction between squaric acid and 2,3,3-trimethyl-5-nitroindolenine proceeded readily giving a product in 97% yield. Electrophotographic characteristic of negatively charged dual-layered photoreceptors with squarylium dyes for charge generation materials and five charge transport materials have been investigated. Photoreceptors that used squarylium dyes containing a nitro group, exhibited high sensitivity under light exposure. (C) 1998 Elsevier Science Ltd. All rights reserved

引用

页码：359 / 369

页数：11

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