Extremely low voltage and high bright p-i-n fluorescent white organic light-emitting diodes

被引：48

作者：

Duan, Y. ^{[1
]}

Mazzeo, M. ^{[1
]}

Maiorano, V. ^{[1
]}

Mariano, F. ^{[1
]}

Qin, D. ^{[1
]}

Cingolani, R. ^{[1
]}

Gigli, G. ^{[1
]}

机构：

[1] Univ Salento, Distretto Tecnol ISUFI, CNR INFM, M5S 3E4, I-73100 Lecce, Italy

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 11期

关键词：

D O I：

10.1063/1.2898401

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Extremely low voltage white organic light-emitting devices (WOLEDs) with fluorescent emitters are realized exploiting p-i-n structure. White light is obtained by two complementary colors system, in which the yellow and the blue emitting components are based on 5,6,11, 12-tetraphenylnaphthacene (rubrene) and 4,4-bis-2, 2-diphenylvinyl-1, 1-spirobiphenyl (Spiro-DPVBi), respectively. The effects on the device performances of various electron blocking layers and hosts for rubrene are discussed. The best device shows a luminance of 1000 cd/m(2) at bias of as low as 2.9 V, and 10 000 cd/m(2) at 4.7 V with a maximum power efficiency of 8.7 lm/W. The Commission Internationale de l'Eclairage chromaticity coordinates change from (0.36, 0.45) at 1000 cd/m(2) to (0.33, 0.42) at 10 000 cd/m(2) showing high color stability. (C) 2008 American Institute of Physics.

引用

页数：3

共 22 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]

Bach U, 2000, ADV MATER, V12, P1060, DOI 10.1002/1521-4095(200007)12:14<1060::AID-ADMA1060>3.0.CO

[3]

2-R

[4]

BIRNSTOCK J, 2005, UNPUB P SID 05 BOST, P40

[5] White organic light-emitting devices for solid-state lighting [J].

D'Andrade, BW ;

Forrest, SR .

ADVANCED MATERIALS, 2004, 16 (18) :1585-1595

[6] The road to high efficiency organic light emitting devices [J].

Forrest, SR .

ORGANIC ELECTRONICS, 2003, 4 (2-3) :45-48

[7]

GEMMERN P, 2006, J APPL PHYS, V100, P23707

[8] High-efficiency and low-voltage p-i-n electrophosphorescent organic light-emitting diodes with double-emission layers [J].

He, GF ;

Pfeiffer, M ;

Leo, K ;

Hofmann, M ;

Birnstock, J ;

Pudzich, R ;

Salbeck, J .

APPLIED PHYSICS LETTERS, 2004, 85 (17) :3911-3913

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

KIDO, J ;

KIMURA, M ;

NAGAI, K .

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

[10] Efficiency enhancement and voltage reduction in white organic light-emitting devices [J].

Lai, S. L. ;

Chan, M. Y. ;

Fung, M. K. ;

Lee, C. S. ;

Lee, S. T. .

APPLIED PHYSICS LETTERS, 2007, 90 (20)

← 1 2 3 →