Improvement of electrode/organic layer interfaces by the insertion of monolayer-like aluminum oxide film

被引：51

作者：

Kurosaka, Y ^{[1
]}

Tada, N ^{[1
]}

Ohmori, Y ^{[1
]}

Yoshino, K ^{[1
]}

机构：

[1] Osaka Univ, Dept Elect Engn, Osaka 5650871, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1998年 / 37卷 / 7B期

关键词：

organic electroluminescent diode; 8-hydroxyquinoline aluminum; diamine derivative; aluminum oxide; EL efficiency;

D O I：

10.1143/JJAP.37.L872

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Insertion of a thin film of aluminum oxide (Al2O3) at the interface of electrodes and organic layers has been investigated. Insertion of a thin film of Al2O3 at the interface of the ITO anode and the diamine derivative (TPD) layers, as well as at the interface of the X-hydroxyquinoline aluminum (Alq(3)) and the Mg:Ag cathode in the electroluminescent (EL) diode has been examined. The insertion of an Al2O3 layer with a proper thickness was observed to enhances the emission efficiency of the device. The mechanism of quantum efficiency enhancement of the device was studied.

引用

收藏

页码：L872 / L875

页数：4

相关论文

共 15 条

[1] BLUE LIGHT-EMITTING ORGANIC ELECTROLUMINESCENT DEVICES [J].

ADACHI, C ;

TSUTSUI, T ;

SAITO, S .

APPLIED PHYSICS LETTERS, 1990, 56 (09) :799-801

[2] Achieving full-color organic light-emitting devices for lightweight, flat-panel displays [J].

Burrows, PE ;

Gu, G ;

Bulovic, V ;

Shen, Z ;

Forrest, SR ;

Thompson, ME .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 1997, 44 (08) :1188-1203

[3] Enhanced electron injection in organic electroluminescence devices using an Al/LiF electrode [J].

Hung, LS ;

Tang, CW ;

Mason, MG .

APPLIED PHYSICS LETTERS, 1997, 70 (02) :152-154

[4] Energy level alignment at organic/metal interfaces studied by UV photoemission: Breakdown of traditional assumption of a common vacuum level at the interface [J].

Ishii, H ;

Seki, K .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 1997, 44 (08) :1295-1301

[5] 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

[6] MULTILAYER WHITE LIGHT-EMITTING ORGANIC ELECTROLUMINESCENT DEVICE [J].

KIDO, J ;

KIMURA, M ;

NAGAI, K .

SCIENCE, 1995, 267 (5202) :1332-1334

[7] Fabrication and electroluminescence of double-layered organic light-emitting diodes with the Al2O3/Al cathode [J].

Li, F ;

Tang, H ;

Anderegg, J ;

Shinar, J .

APPLIED PHYSICS LETTERS, 1997, 70 (10) :1233-1235

[8] FABRICATION AND CHARACTERISTICS OF 8-HYDROXYQUINOLINE ALUMINUM AROMATIC DIAMINE ORGANIC MULTIPLE-QUANTUM-WELL AND ITS USE FOR ELECTROLUMINESCENT DIODE [J].

OHMORI, Y ;

FUJII, A ;

UCHIDA, M ;

MORISHIMA, C ;

YOSHINO, K .

APPLIED PHYSICS LETTERS, 1993, 62 (25) :3250-3252

[9] Stacked organic light-emitting diodes in full color [J].

Sheats, JR .

SCIENCE, 1997, 277 (5323) :191-192

[10] Three-color, tunable, organic light-emitting devices [J].

Shen, ZL ;

Burrows, PE ;

Bulovic, V ;

Forrest, SR ;

Thompson, ME .

SCIENCE, 1997, 276 (5321) :2009-2011