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Synthesis of Asymmetric Anthracene Derivatives and Their Application for Blue Organic Light‐emitting Diodes
Author(s) -
Choi InSu,
Jeong MyoungHoon,
Lee Seon Hee,
Park Myung Hwan,
Chung Yongseog
Publication year - 2016
Publication title -
bulletin of the korean chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 59
ISSN - 1229-5949
DOI - 10.1002/bkcs.10640
Subject(s) - anthracene , electroluminescence , oled , naphthalene , blue light , photochemistry , materials science , optoelectronics , doping , diode , brightness , quantum efficiency , chemistry , layer (electronics) , organic chemistry , nanotechnology , optics , physics
Aryl‐substituted asymmetric anthracene blue host materials, 10‐naphthalene‐2‐yl‐9‐phenyl‐2‐triphenylsilylanthracene ( 6 ) and 9‐(4‐( tert ‐butyl)phenyl)‐10‐(2‐methyl‐5‐(naphthalen‐1‐yl)phenyl)anthracene ( 7 ) were synthesized and characterized. Asymmetric anthracene derivatives 6 and 7 possessed high thermal stabilities that are suitable as emitting layer materials for blue organic light‐emitting device. The electroluminescence emission maximum of BD ‐142‐doped (7 wt %) two devices exhibited at 464 nm (for 6 ) and 472 nm (for 7 ), respectively. All devices showed good performances as blue host materials. The 7 ‐based device especially displayed higher device performances in terms of brightness ( L max = 37 090 cd/m 2 ), luminous current density (7.26 cd/A), and external quantum efficiencies (5.80%) than those of 6 ‐based device.