Synthesis and electroluminescent properties of bis(3-N-ethylcarbazolyl)cyanoterephthalidene

被引：30

作者：

Park, JW ^{[1
]}

Lee, JH

Lee, HS

Kang, DY

Kim, TW

机构：

[1] Chungju Natl Univ, Dept Polymer Engn, Chungju 380702, South Korea

[2] Samsung Display Devices, Flat Display Lab, Suwon 442391, South Korea

[3] Hongik Univ, Dept Elect Engn, Seoul 121791, South Korea

[4] Hongik Univ, Dept Phys, Seoul 121791, South Korea

来源：

THIN SOLID FILMS | 2000年 / 363卷 / 1-2期

基金：

新加坡国家研究基金会;

关键词：

electroluminescence; bis(3-N-ethylcarbazolyl)cyanoterephthalidene (BECCP); poly(3,6-N-2-ethylhexylcarbazolyl cyanotere-phthalidene (PECCP); blue emitting material;

D O I：

10.1016/S0040-6090(99)01008-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new blue electroluminescent material analog to poly(3,6-N-2-ethplhexylcarbazolyl cyanotere-phthalidene) (PECCP) was synthesized by a facile reaction of 9-ethyl-3 -carbazole carboxy aldehyde with 1,4-phenylenediacetonitrile. The re suiting bis(3-N-ethylcarbazolyl)cyanoterephthalidene (BECCP) having cyano (electron acceptor part) and carbazole moiety (electron donor part) was characterized by NMR, IR, UV and was vacuum-deposited into thin film of smooth surface. BECCP shows blue PL and EL spectra at 480 nm corresponding to 2.58 eV and typical rectifying diode characteristics in ITO/BECCP/Al devices in both forward and reverse bias. The turn on voltage are +8 V and 4 V when the BECCP layer are 600 and 300 Angstrom thick, respectively. (C) 2000 Elsevier Science S.A, Ail rights reserved.

引用

页码：90 / 93

页数：4

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