Organic light-emitting diodes with improved hole-electron balance by using copper phthalocyanine/aromatic diamine multiple quantum wells

被引：111

作者：

Qiu, Y ^{[1
]}

Gao, YD ^{[1
]}

Wei, P ^{[1
]}

Wang, LD ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Chem, Organ Optoelect Lab, Beijing 100084, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 15期

关键词：

D O I：

10.1063/1.1468894

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Organic light-emitting diodes (OLEDs) with multiple-quantum-well structures, which consist of copper phthalocyanine and N,N'-bis-(1-naphthyl)-N,N-'-diphenyl-1,1' biphenyl 4, 4'-diamine, have been fabricated. The effect of the MQW structure upon the performance of OLEDs with tris(8-hydroxyquinoline) aluminum as the emitting material has been investigated. Compared with the luminous efficiency of the conventional diode with the MQW number of 0, that of the diode with the MQW number of 4 has been sharply increased up to 10.8 cd/A. Such an improvement in the device performance was attributed to the improved hole-electron balance, which can be further attributed to the introduction of the MQW structure. (C) 2002 American Institute of Physics.

引用

页码：2628 / 2630

页数：3

共 11 条

[1] POLARIZATION ANISOTROPY OF ORGANIC ELECTROLUMINESCENT DIODE WITH PERIODIC MULTILAYER STRUCTURE UTILIZING 8-HYDROXYQUINOLINE ALUMINUM AND AROMATIC DIAMINE [J].

FUJII, A ;

YOSHIDA, M ;

OHMORI, Y ;

YOSHINO, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1995, 34 (5B) :L621-L624

[2] Comparative study of photoluminescence dynamics of tris(8-hydroxyquinoline) aluminum-based organic multilayer structures with different types of energy lineups [J].

Fujita, S ;

Nakazawa, T ;

Asano, M ;

Fujita, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2000, 39 (9A) :5301-5309

[3] Effect of well number on organic multiple-quantum-well electroluminescent device characteristics [J].

Huang, JS ;

Yang, KX ;

Xie, ZY ;

Chen, BJ ;

Jiang, HJ ;

Liu, SY .

APPLIED PHYSICS LETTERS, 1998, 73 (23) :3348-3350

[4] Optically pumped blue organic semiconductor lasers [J].

Kozlov, VG ;

Parthasarathy, G ;

Burrows, PE ;

Forrest, SR ;

You, Y ;

Thompson, ME .

APPLIED PHYSICS LETTERS, 1998, 72 (02) :144-146

[5] 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

[6] 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

[7] Transient electroluminescence from single- and double-layer light-emitting diodes (LEDs) based on polymer blends [J].

Pommerehne, J ;

Vestweber, H ;

Tak, YH ;

Bassler, H .

SYNTHETIC METALS, 1996, 76 (1-3) :67-70

[8] Room-temperature ultraviolet emission from an organic light-emitting diode [J].

Qiu, CF ;

Wang, LD ;

Chen, HY ;

Wong, M ;

Kwok, HS .

APPLIED PHYSICS LETTERS, 2001, 79 (14) :2276-2278

[9] Electronic structures at the interfaces between copper phthalocyanine and layered materials [J].

Shimada, T ;

Hamaguchi, K ;

Koma, A ;

Ohuchi, FS .

APPLIED PHYSICS LETTERS, 1998, 72 (15) :1869-1871

[10] Nonlinear emission from 8-hydroxyquinoline aluminum and diamine derivative superlattice structures excited by third-harmonic-generation from Nd:YAG laser light [J].

Tada, N ;

Tatsuhara, S ;

Fujii, A ;

Ohmori, Y ;

Yoshino, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1997, 36 (4A) :L421-L424

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