Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1443196 | Synthetic Metals | 2007 | 6 Pages |
Abstract
Novel distyrylarylene-based blue host materials, 4,4′-bis(1,2-diphenylvinyl)-p-terphenyl (2), 4,4′-bis[1-phenyl-2-(p-tolyl)vinyl]-p-terphenyl (3) and 4,4′-bis[1-phenyl-2-(4,4′-biphenyl)vinyl]-p-terphenyl (4) were successfully synthesized using 4,4′-bisbenzoyl-p-terphenyl (1) through Wittig–Hornor reaction and a blue organic light-emitting diode (OLED) was made from them. The structure of the blue device is ITO/DNTPD/NPB/Host:DSA-Ph/Alq3/Al-LiF. Here, NPB is used as a hole transport layer, DNTPD as the hole injection layer, DSA-Ph as the blue dopant, Alq3 as the electron transport layer and Al as the cathode. The blue device doped with 5%-DSA-Ph shows a blue EL spectrum at 463 nm and a high efficiency of 4.14–5.13 cd/A.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Biomaterials
Authors
Nack-Chul Seong, Young-Min Jeon, Tae-Ho Lim, Joon-Woo Kim, Chil-Won Lee, En-Jung Lee, Ji-Geun Jang, Ho-Jeong Jang, Joon-Young Lee, Myoung-Seon Gong,