Red electroluminescence of a europium complex dispersed in poly(N-vinylcarbazole)

被引：34

作者：

Peng, JB ^{[1
]}

Takada, N

Minami, N

机构：

[1] S China Univ Technol, Fac mat Sci & Engn, Inst Polymer Optoelect Mat & Devices, Guangzhou 510640, Wushan, Peoples R China

[2] Natl Inst Mat & Chem Res, Dept Polymer Phys, Tsukuba, Ibaraki 3058565, Japan

来源：

THIN SOLID FILMS | 2002年 / 405卷 / 1-2期

关键词：

red electroluminescence; europium complexes; polymer;

D O I：

10.1016/S0040-6090(01)01700-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A bright and highly monochromatic red organic electroluminescent device based on a poly (N-vinylcarbazole) host was made. The device structure consists of poly (N-vinylcarbazole) dispersed with a europium complex, a triphenyldiamine derivative and 1,3,5-oxadiazole derivative as an emitting layer, a hole blocking layer of 1,2,4-triazole derivative and an electron-transporting layer of 8-hydroxyquinoline aluminum. The brightness of this device exceeds 500 cd/m(2) under d.c. voltage conditions. This is the highest brightness reported for a polymer dispersed with a europium complex device. Possible reasons for obtaining such high brightness were analyzed. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：224 / 227

页数：4

共 18 条

[1] Very high-efficiency green organic light-emitting devices based on electrophosphorescence [J].

Baldo, MA ;

Lamansky, S ;

Burrows, PE ;

Thompson, ME ;

Forrest, SR .

APPLIED PHYSICS LETTERS, 1999, 75 (01) :4-6

[2] White light emission from exciplex in a bilayer device with two blue light-emitting polymers [J].

Chao, CI ;

Chen, SA .

APPLIED PHYSICS LETTERS, 1998, 73 (04) :426-428

[3] Growth of dark spots by interdiffusion across organic layers in organic electroluminescent devices [J].

Fujihira, M ;

Do, LM ;

Koike, A ;

Han, EM .

APPLIED PHYSICS LETTERS, 1996, 68 (13) :1787-1789

[4]

HAMADA Y, 1997, ORGANIC ELECTROLUMIN, P311

[5] Electron-transport properties of rare earth chelates in organic electroluminescent devices [J].

Hong, ZR ;

Li, WL ;

Liang, CJ ;

Yu, JQ ;

Sun, G ;

Liu, XY ;

Liu, YL ;

Peng, JB ;

Lee, ST .

SYNTHETIC METALS, 1997, 91 (1-3) :271-273

[6] SINGLE-LAYER WHITE LIGHT-EMITTING ORGANIC ELECTROLUMINESCENT DEVICES BASED ON DYE-DISPERSED POLY(N-VINYLCARBAZOLE) [J].

KIDO, J ;

SHIONOYA, H ;

NAGAI, K .

APPLIED PHYSICS LETTERS, 1995, 67 (16) :2281-2283

[7] BRIGHT RED LIGHT-EMITTING ORGANIC ELECTROLUMINESCENT DEVICES HAVING A EUROPIUM COMPLEX AS AN EMITTER [J].

KIDO, J ;

HAYASE, H ;

HONGAWA, K ;

NAGAI, K ;

OKUYAMA, K .

APPLIED PHYSICS LETTERS, 1994, 65 (17) :2124-2126

[8] ELECTROLUMINESCENCE IN A TERBIUM COMPLEX [J].

KIDO, J ;

NAGAI, K ;

OHASHI, Y .

CHEMISTRY LETTERS, 1990, (04) :657-660

[9] ELECTROLUMINESCENCE FROM POLYSILANE FILM DOPED WITH EUROPIUM COMPLEX [J].

KIDO, J ;

NAGAI, K ;

OKAMOTO, Y ;

SKOTHEIM, T .

CHEMISTRY LETTERS, 1991, (07) :1267-1270

[10]

Kido J., 1996, JPN J APPL PHYS, V35, P394

← 1 2 →