Photo/electroluminescent properties of novel bipolar oligomers

被引：12

作者：

Kim, OK ^{[1
]}

Woo, HY

Lee, KS

Kim, JK

Kim, DY

Shim, HK

Kim, CY

机构：

[1] USN, Res Lab, Div Chem, Washington, DC 20375 USA

[2] Korea Adv Inst Sci & Technol, Dept Polymer Chem, Taejon 306010, South Korea

[3] Hannam Univ, Dept Macromol Sci, Taejon 300791, South Korea

[4] Korea Inst Sci & Technol, Polymer Mat Lab, Seoul 30650, South Korea

来源：

SYNTHETIC METALS | 2001年 / 121卷 / 1-3期

关键词：

photoluminescence; electroluminescence and organic semiconductors;

D O I：

10.1016/S0379-6779(00)00662-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bipolar light-emitting (LE) oligomers consisting of three sequential segments centered by dithienothiophene (DTT) as pi -center and attached by D/D or D/A pair: D-pi -D (dye 1) or D-pi -A (dye 2) where D and A refer to hole transporting (HT) and electron-transporting (ET) units, respectively. Their redox properties are alike, suggesting the resemblance in bipolarity. Photoluminescence (PL) shows that the symmetric D/D system has a higher PL quantum efficiency relative to the D/A system. Electroluminescence (EL) from a single-layer device using a PVK blend displays a slightly higher light intensity with D/A system while EL quantum efficiency of D/D system doubles that of D/A system.

引用

页码：1607 / 1608

页数：2

共 9 条

[1]

De Jong F, 1971, J ORG CHEM, V36, P1645

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