Development of high-performance blue-violet-emitting organic electroluminescent devices

Citation
K. Okumoto et Y. Shirota, Development of high-performance blue-violet-emitting organic electroluminescent devices, APPL PHYS L, 79(9), 2001, pp. 1231-1233
Citations number
23
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
0003-6951 → ACNP
Volume
79
Issue
9
Year of publication
2001
Pages
1231 - 1233
Database
ISI
SICI code
0003-6951(20010827)79:9<1231:DOHBOE>2.0.ZU;2-A
Abstract
Two high-performance blue-violet-emitting organic electroluminescent device s with electroluminescence peaking at 404 and 415 nm were developed using a hole-blocking amorphous molecular material, 1,3,5-tris(4-fluorobiphenyl-4' -yl)benzene, and emitting amorphous molecular materials, N,N-'-bis(3-methyl phenyl)-N,N-'-diphenyl-[1,1'-biphenyl]-4,4'-diamine and N,N-'-di(4-biphenyl yl)-N,N-'-diphenyl-[1,1'-biphenyl]-4,4'-diamine. The devices show maximum l uminaces of 3960 cd m(-2) at 15 V and 2550 cd m(-2) at 12.0 V, having turn- on voltages of 4.0 V and external quantum efficiencies of 1.40% and 1.25%. (C) 2001 American Institute of Physics.