On the energy transfer from a polymer host to the rhenium(I) complex in OLEDs

被引：28

作者：

Mizoguchi, Sergio Kenji ^{[1
]}

Toledo Patrocinio, Antonio Otavio ^{[1
]}

Murakami Iha, Neyde Yukie ^{[1
]}

机构：

[1] Univ Sao Paulo, Lab Photochem & Energy Convers, Inst Quim, BR-05508900 Sao Paulo, Brazil

来源：

SYNTHETIC METALS | 2009年 / 159卷 / 21-22期

基金：

巴西圣保罗研究基金会;

关键词：

Photoluminescence; Electroluminescence; Re(I) complex; Light-emitting diodes (LED); Energy transfer; LIGHT-EMITTING-DIODES; RE(I) COMPLEX; DEVICES; ELECTROLUMINESCENCE; SINGLE; PERFORMANCE; DOPANT; PVK;

D O I：

10.1016/j.synthmet.2009.08.046

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Photoluminescence and electroluminescence of PVK films doped with fac-[ClRe(CO)(3)(bpy)], bpy=2,2'-bipyridine, are investigated. Photoluminescence spectra of spin-coated PVK films (lambda(exc)=290 nm) exhibit a broad band centered at 405 nm. As the concentration of dopant increases, the polymer emission is quenched and a band at 555 nm appears (isosbestic point at 475 nm). In OLEDs with ITO/PEDOT:PSS/PVK/butylPBD/Al architecture doped with fac-[ClRe(CO)(3)(bpy)], the polymer host emission is completely quenched even at the lowest concentration of dopant. The electroluminescence spectra of the devices show that there is an efficient energy transfer from the host to the dopant, which exhibits a very intense emission at 580 nm. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2315 / 2317

页数：3

共 21 条

[1] 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

[2] Red electroluminescence from transparent PVK-dye films based on dipyrido[3,2-a:2′,3′-c]phenazine and Re(CO)3Cl-dipyrido[3,2-a:2′,3′-c]phenazine dyes [J].

David, G ;

Walsh, PJ ;

Gordon, KC .

CHEMICAL PHYSICS LETTERS, 2004, 383 (3-4) :292-296

[3] Syntheses and spectroscopic characterization of fac-[Re(CO)3(phen)(L)]PF6, L = trans- and cis-1,2-bis(4-pyridyl)ethylene [J].

Itokazu, MK ;

Polo, AS ;

de Faria, DLA ;

Bignozzi, CA ;

Iha, NYM .

INORGANICA CHIMICA ACTA, 2001, 313 (1-2) :149-155

[4] Energy transfer in polymer electrophosphorescent light emitting devices with single and multiple doped luminescent layers [J].

Kawamura, Y ;

Yanagida, S ;

Forrest, SR .

JOURNAL OF APPLIED PHYSICS, 2002, 92 (01) :87-93

[5] Observation of red intraligand electrophosphorescence from a stilbene-containing Re(I) complex [J].

Li, B ;

Li, MT ;

Hong, ZR ;

Li, WL ;

Yu, TZ ;

Wei, HZ .

APPLIED PHYSICS LETTERS, 2004, 85 (20) :4786-4788

[6] Highly efficient phosphorescent organic light-emitting devices based on Re(CO)3Cl-bathophenanthroline [J].

Li, Jiang ;

Si, Zhenjun ;

Liu, Chunbo ;

Li, Chuannan ;

Zhao, Feifei ;

Duan, Yu ;

Chen, Ping ;

Liu, Shiyong ;

Li, Bin .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 2007, 22 (05) :553-556

[7] Very high-efficiency organic light-emitting diodes based on cyclometallated rhenium (I) complex [J].

Li, Xiao ;

Zhang, Dongyu ;

Li, Wenlian ;

Chu, Bei ;

Han, Liangliang ;

Zhu, Jianzhuo ;

Su, Zisheng ;

Bi, Defeng ;

Wang, Dan ;

Yang, Dongfang ;

Chen, Yiren .

APPLIED PHYSICS LETTERS, 2008, 92 (08)

[8] Triphenylamine-functionalized rhenium (I) complex as a highly efficient yellow-green emitter in electrophosphorescent devices [J].

Liu, Chunbo ;

Li, Jiang ;

Li, Bin ;

Hong, Ziruo ;

Zhao, Feifei ;

Liu, Shiyong ;

Li, Wenlian .

APPLIED PHYSICS LETTERS, 2006, 89 (24)

[9] Synthesis and optical and electroluminscent properties of two new solution-processable N∧O- Re(I) complexes [J].

Lu, Yuan-Yuan ;

Ju, Chuan-Chuan ;

Guo, Dong ;

Deng, Zhen-Bo ;

Wang, Ke-Zhi .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (13) :5211-5217

[10] Synthesis and characterization of a multicomponent rhenium(I) complex for application as an OLED dopant [J].

Lundin, NJ ;

Blackman, AG ;

Gordon, KC ;

Officer, DL .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (16) :2582-2584

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