Blue electroluminescence from spiro-configured polyfluorene derivatives with hetero-atoms

被引：28

作者：

Vak, D ^{[1
]}

Shin, SJ ^{[1
]}

Yum, JH ^{[1
]}

Kim, SS ^{[1
]}

Kim, DY ^{[1
]}

机构：

[1] Gwangju Inst Sci & Technol, Ctr Frontier Mat, Dept Mat Sci & Engn, Kwangju, South Korea

来源：

JOURNAL OF LUMINESCENCE | 2005年 / 115卷 / 3-4期

关键词：

OLED; PLED; blue-emitting; polyfluorene; spiro-structure;

D O I：

10.1016/j.jlumin.2005.02.015

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

New polyfluorene (PF) derivatives with hetero-atom containing spiro-rings were characterized. The polymers showed typical optical properties of PFs with pure blue emission and enhanced thermal properties due to the presence of bulky spiro-rings at C-9 position of the fluorene unit. Hetero-atoms, even when in spiro-rings, affected the energy levels of the polymers. In particular, the nitrogen-containing polymer showed an improved HOMO level for efficient hole injection at 5.35eV and a polymer light-emitting diode (PLED) based on the polymer showed low turn-on and operating voltages. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：109 / 116

页数：8

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