学术探索
学术期刊
新闻热点
数据分析
智能评审

Failure modes in vapor-deposited organic LED's

被引：4
作者：
Antoniadis, H
Hueschen, MR
Miller, JN
Moon, RL
Roitman, DB
Sheats, JR
机构：
[1] Hewlett-Packard Labs., Palo Alto, CA 94304
来源：
MACROMOLECULAR SYMPOSIA | 1998年 / 125卷
关键词：
D O I：
10.1002/masy.19981250104
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A study of the main failure mechanisms in vacuum vapor-deposited organic light-emitting diodes (LED's) is presented. Three degradation modes were identified for a prototype bilayer ITO/TPD/Alq(3)/Mg/Ag device: a) formation and growth of black nonemissive spots, b) abrupt ceasing of light emission associated with catastrophic failures caused by electrical shorts, and c) long term wearout associated with the decrease of quantum efficiency and luminance along with an increase in voltage, while the device is stressed under constant current.
引用
收藏
页码：59 / 67
页数：9
相关论文
共 13 条
[1]  
ADACHI C, 1996, J J APP PHYS, V35, P222
[2]   Growth of dark spots by interdiffusion across organic layers in organic electroluminescent devices [J].
Fujihira, M ;
Do, LM ;
Koike, A ;
Han, EM .
APPLIED PHYSICS LETTERS, 1996, 68 (13) :1787-1789
[3]   OBSERVATION OF CRYSTALLIZATION OF VAPOR-DEPOSITED TPD FILMS BY AFM AND FFM [J].
HAN, EM ;
DO, LM ;
NIIDOME, Y ;
FUJIHIRA, M .
CHEMISTRY LETTERS, 1994, (05) :969-972
[4]  
IMAI K, 1993, Patent No. 5256945
[5]   Formation and growth of black spots in organic light-emitting diodes [J].
McElvain, J ;
Antoniadis, H ;
Hueschen, MR ;
Miller, JN ;
Roitman, DM ;
Sheats, JR ;
Moon, RL .
JOURNAL OF APPLIED PHYSICS, 1996, 80 (10) :6002-6007
[6]   A chemical failure mechanism for aluminum(III) 8-hydroxyquinoline light-emitting devices [J].
Papadimitrakopoulos, F ;
Zhang, XM ;
Thomsen, DL ;
Higginson, KA .
CHEMISTRY OF MATERIALS, 1996, 8 (07) :1363-&
[7]  
ROITMAN DB, 1996, IS T 49 ANN C SOC IM, P414
[8]  
Sato Y., 1994, MOL CRYST LIQ CRYST, V253, P143
[9]   Organic electroluminescent devices [J].
Sheats, JR ;
Antoniadis, H ;
Hueschen, M ;
Leonard, W ;
Miller, J ;
Moon, R ;
Roitman, D ;
Stocking, A .
SCIENCE, 1996, 273 (5277) :884-888
[10]   MULTILAYERED ORGANIC ELECTROLUMINESCENT DEVICE USING A NOVEL STARBURST MOLECULE, 4,4',4''-TRIS(3-METHYLPHENYLPHENYLAMINO)TRIPHENYLAMINE, AS A HOLE TRANSPORT MATERIAL [J].
SHIROTA, Y ;
KUWABARA, Y ;
INADA, H ;
WAKIMOTO, T ;
NAKADA, H ;
YONEMOTO, Y ;
KAWAMI, S ;
IMAI, K .
APPLIED PHYSICS LETTERS, 1994, 65 (07) :807-809
12