Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1664254 | Thin Solid Films | 2015 | 7 Pages |
Abstract
Four 9,9-diethyl-N,N-diphenyl-9Â H-fluoren-2-amine substituted anthracene derivatives have been designed and synthesized by Suzuki cross coupling reactions. To explore the electroluminescent properties of these blue materials, multilayer blue organic light-emitting diodes were fabricated in the following device structure: indium tin oxide (180Â nm)/N,N'-diphenyl-N,N'-(1-napthyl)-(1,1â²-phenyl)-4,4â²-diamine (50Â nm)/blue emitting materials (1-4) (30Â nm)/bathophenanthroline (30Â nm)/lithium quinolate (2Â nm)/Al (100Â nm). All devices appeared excellent deep-blue emissions. Among them, a device exhibited a maximum luminance of 5686Â cd/m2, the luminous, power and external quantum efficiencies of 5.11Â cd/A, 3.79Â lm/W, and 4.06% with the Commission International de L'Eclairage coordinates of (0.15, 0.15) at 500Â cd/m2, respectively.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Seul Bee Lee, Chanwoo Kim, Soo Na Park, Young Seok Kim, Ho Won Lee, Young Kwan Kim, Seung Soo Yoon,