Combinatorial device fabrication and optimization of multilayer organic LEDs

被引：14

作者：

Beierlein, TA ^{[1
]}

Ott, HP ^{[1
]}

Hofmann, H ^{[1
]}

Riel, H ^{[1
]}

Ruhstaller, B ^{[1
]}

Crone, B ^{[1
]}

Karg, S ^{[1
]}

Riess, W ^{[1
]}

机构：

[1] IBM Res Corp, Zurich Res Lab, CH-8803 Ruschlikon, Switzerland

来源：

ORGANIC LIGHT-EMITTING MATERIALS AND DEVICES V | 2002年 / 4464卷

关键词：

combinatorial method; organic light-emitting device; organic electroluminescence; multilayer; optimization;

D O I：

10.1117/12.457474

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In order to get a detailed understanding of organic light-emitting devices (OLEDs), optimize their performance and provide reliable data for device modeling, we have developed an ultra-high vacuum (UHV) evaporation system for combinatorial studies. Our system allows the simultaneous fabrication of 10 x 10 individual devices on one substrate enabling a systematic variation of material combinations and electrodes as well as device parameters such as layer thickness, layer sequence, dye dopant concentrations. Here, we present an overview of the capabilities of combinatorial methods for electrical and electro-optical device optimization. We show results on multilayer OLEDs ranging from the conventional copper-phthalocyanine (CuPc)/ N,N'-di(naphtalene-1-yl)-N,N'-diphenyl-benzidine (NPB) and tris(8-hydroxyquinolinato)aluminum. (Alq) trilayer device to double-doped, red-emitting OLEDs with efficiencies up to 1.5 cd/A at 20 mA/cm(2) measured through a semitransparent metal electrode and CIE color coordinates of x = 0.65, y = 0.34.

引用

页码：178 / 186

页数：9

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] Electron mobility in tris(8-hydroxy-quinoline)aluminum thin films determined via transient electroluminescence from single- and multilayer organic light-emitting diodes [J].

Barth, S ;

Müller, P ;

Riel, H ;

Seidler, PF ;

Riess, W ;

Vestweber, H ;

Bässler, H .

JOURNAL OF APPLIED PHYSICS, 2001, 89 (07) :3711-3719

[3] Effect of metal films on the photoluminescence and electroluminescence of conjugated polymers [J].

Becker, H ;

Burns, SE ;

Friend, RH .

PHYSICAL REVIEW B, 1997, 56 (04) :1893-1905

[4] Exciton migration and cathode quenching in organic light emitting diodes [J].

Burin, AL ;

Ratner, MA .

JOURNAL OF PHYSICAL CHEMISTRY A, 2000, 104 (20) :4704-4710

[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] Red organic light-emitting diodes using an emitting assist dopant [J].

Hamada, Y ;

Kanno, H ;

Tsujioka, T ;

Takahashi, H ;

Usuki, T .

APPLIED PHYSICS LETTERS, 1999, 75 (12) :1682-1684

[7] Highly efficient phosphorescence from organic light-emitting devices with an exciton-block layer [J].

Ikai, M ;

Tokito, S ;

Sakamoto, Y ;

Suzuki, T ;

Taga, Y .

APPLIED PHYSICS LETTERS, 2001, 79 (02) :156-158

[8] Simulation of light emission from thin-film microcavities [J].

Neyts, KA .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1998, 15 (04) :962-971

[9]

RAJESWARAN G, 2000, SID 00, P1

[10] Influence of space charges on the current-voltage characteristic of organic light-emitting devices [J].

Riel, H ;

Brütting, W ;

Beierlein, T ;

Haskal, E ;

Müller, P ;

Riess, W .

SYNTHETIC METALS, 2000, 111 :303-306

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