Effect of low-molecular component on electroluminescent properties of polyfluorene derivative

被引：3
|
作者：
Mori, T [1 ]
Fujishima, D
Hosoi, K
Mizutani, T
机构：
[1] Nagoya Univ, Grad Sch Engn, Dept Elect Engn, Aichi 4648603, Japan
[2] Tokyo Inst Technol, Midori Ku, Kanagawa 2268503, Japan
[3] JFE Chem Corp, Okayama 7140063, Japan
来源：
JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY | 2003年 / 16卷 / 02期
关键词：
polyfluorene; molecular weight distribution; excimer;
D O I：
10.2494/photopolymer.16.317
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
We synthesized two kinds of poly(9,9-diochtylfluorene) (PDOF) with different molecular weight distribution. One is PDOF with low weight molecular component (PDOF-l) and the other is PDOF with high molecular component (PDOF-h). The latter showed twice higher PL efficiency than the former. We investigated PL spectra and EL properties of the blended specimens of two PDOFs. The increase in PDOF-l content reduced PL intensity, conduction current at a constant voltage, and EL efficiency. We suggested the model due to excimer formation caused by the degree of freedom in motion of edge groups.
引用
收藏
页码：317 / 321
页数：5
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