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P‐192: Highly Efficient Blue Organic Electroluminescent Devices
Author(s) -
Ho MengHuan,
Chang ChiaMing,
Chu TaYa,
Chen Chin H.
Publication year - 2006
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.2433680
Subject(s) - luminance , anthracene , dopant , doping , electroluminescence , quantum efficiency , fluorescence , materials science , steric effects , optoelectronics , photochemistry , chemistry , optics , stereochemistry , physics , nanotechnology , layer (electronics)
A series of highly efficient blue dopants based on the iminodibenzyl‐substituted distyrylarylene (IDB‐DSA) fluorescent dye using the concept of steric compression of a rigidized and over‐sized ring have been designed and synthesized. When doped in the stable 2‐(methyl)‐9,10‐di(2‐naphthyl)anthracene (MADN), the seven‐membered DSA (7‐DSA‐Ph) doped device achieved a luminance efficiency of 9.1 cd/A at 20 mA//cm 2 with a CIE x,y color coordinate of (0.16, 0.28) and a maximum external quantum efficiency of 4.8%. When used in a 2‐element WOLED system, the 7‐DSA‐Ph doped device achieved a luminance efficiency of 11.0 cd/A at 20 mA/cm 2 with a CIE x,y color coordinate of (0.29, 0.36).
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