ELECTROABSORPTION OF PHOTOCONDUCTIVE AZO PIGMENTS

被引：10

作者：

UMEDA, M ^{[1
]}

YOKOYAMA, M ^{[1
]}

机构：

[1] OSAKA UNIV,FAC ENGN,SUITA,OSAKA 565,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1995年 / 34卷 / 1A期

关键词：

ELECTROABSORPTION; AZO PIGMENT; PHOTOCARRIER GENERATION; FRENKEL EXCITON; CT EXCITON; EXTRINSIC MECHANISM; PHOTORECEPTOR;

D O I：

10.1143/JJAP.34.L44

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photoexcited states of fluorenone bisazo and triphenylamine trisazo pigments, both generating photocarriers extrinsically with the hole-transport-type arylamine molecules through the photoinduced electron transfer with high efficiency, were investigated by means of electromodulated absorption spectra. As a result, it was found that the former pigment forms a Frenkel exciton and the latter pigment a charge-transfer (CT) exciton. The different types of excitons well explained the photosensitivity of photoreceptors based on these two azo pigments.

引用

页码：L44 / L46

页数：3