Highly efficient energy transfer to a novel organic dye in OLED devices

被引：110

作者：

Hepp, A ^{[1
]}

Uirich, G

Schmechel, R

von Seggern, H

Ziessel, R

机构：

[1] Tech Univ Darmstadt, Inst Sci Mat, Darmstadt, Germany

[2] ULP, ECPM, Lab Chim Mol, Strasbourg, France

来源：

SYNTHETIC METALS | 2004年 / 146卷 / 01期

关键词：

OLEDs; Alq(3); alpha-NPD; Boditerpy dyes; energy transfer;

D O I：

10.1016/j.synthmet.2004.06.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The neutral 4,4-difluoro-8-(2,2':6',2"-terpyridine-4'-yl)-1,3,5,7-tetramethyl-2,6-diethyl-4-bora-3a,4a-diaza-s-indacene (Boditerpy) molecule was synthesized and incorporated as dopant (<1%) in double-layer organic light emitting diodes (OLEDs) with the configuration ITO/alpha-NPD(60 nm)/Alq(3)(60 nm):Boditerpy (0.4 nm)/LiF(0.02 nm)/Al(80 nm). This device exhibits green emission with a brightness of 545 cd/m(2) at 8 V and a maximum power efficiency of 0.9 lm/W. A full quantitative energy transfer process is indicated by a complete quenching of light emission from Alq(3) in photoluminescence. However, I-V characteristics indicate some losses during the charge transfer processes in OLED configuration (C) 2004 Elsevier B.V. All rights reserved.

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页码：11 / 15

页数：5

相关论文

共 19 条

[1] Endothermic energy transfer: A mechanism for generating very efficient high-energy phosphorescent emission in organic materials [J].

Adachi, C ;

Kwong, RC ;

Djurovich, P ;

Adamovich, V ;

Baldo, MA ;

Thompson, ME ;

Forrest, SR .

APPLIED PHYSICS LETTERS, 2001, 79 (13) :2082-2084

[2] 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

[3] Highly efficient phosphorescent emission from organic electroluminescent devices [J].

Baldo, MA ;

O'Brien, DF ;

You, Y ;

Shoustikov, A ;

Sibley, S ;

Thompson, ME ;

Forrest, SR .

NATURE, 1998, 395 (6698) :151-154

[4] Bright, saturated, red-to-yellow organic light-emitting devices based on polarization-induced spectral shifts [J].

Bulovic, V ;

Shoustikov, A ;

Baldo, MA ;

Bose, E ;

Kozlov, VG ;

Thompson, ME ;

Forrest, SR .

CHEMICAL PHYSICS LETTERS, 1998, 287 (3-4) :455-460

[5] Recent developments in the synthesis of red dopants for Alq3 hosted electroluminescence [J].

Chen, CH ;

Tang, CW ;

Shi, J ;

Klubek, KP .

THIN SOLID FILMS, 2000, 363 (1-2) :327-331

[6] PHOTOINDUCED ELECTRON-TRANSFER AND ENERGY-TRANSFER PROCESSES OCCURRING WITHIN PORPHYRIN-METAL-BISTERPYRIDYL CONJUGATES [J].

COLLIN, JP ;

HARRIMAN, A ;

HEITZ, V ;

ODOBEL, F ;

SAUVAGE, JP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (13) :5679-5690

[7] High-efficiency yellow double-doped organic light-emitting devices based on phosphor-sensitized fluorescence [J].

D'Andrade, BW ;

Baldo, MA ;

Adachi, C ;

Brooks, J ;

Thompson, ME ;

Forrest, SR .

APPLIED PHYSICS LETTERS, 2001, 79 (07) :1045-1047

[8]

DAUB J, 1997, POLYM PREPR, V38, P339

[9] First examples of organophosphorus-containing materials for light-emitting diodes [J].

Fave, C ;

Cho, TY ;

Hissler, M ;

Chen, CW ;

Luh, TY ;

Wu, CC ;

Réau, R .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (31) :9254-9255

[10]

Fischer H, 1927, LIEBIGS ANN CHEM, V452, P268