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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 30, Number 7
BKCSDE 30(7)
July 20, 2009 

 
Title
Synthesis and Characterization of New Anthracene-Based Blue Host Material
Author
Ki Ho So, Hyun Tae Park, Sung Chul Shin, Sang Gyeong Lee, Dong Hui Lee, Kyeong Hoon Lee, Hyeong Yun Oh, Soon Ki Kwon, Yun Hi Kim*
Keywords
Blue host, Anthracene, Twisted structure, Wide band gap
Abstract
We designed new anthracene-based host material to increase color purity as well as device efficiency. The new blue host, 9,10-bis(2,4-dimethylphenyl)anthracene (BDA), has highly twisted structure and wide band gap due to ortho interaction between anthracene and introduced 2,4-dimethylphenyl substituents. BDA exhibited deep blue fluorescence in solution (λmax = 410 nm) and in solid state (λmax = 429 nm), respectively, with the wide optical band gap (E = 3.12 eV). Blue-light-emitting OLEDs using obtained host and 2% Flu-DPAN as emitter showed 8 cd/A of high efficiency as well as high color purity [CIE coordinates = (0.15, 015)].
Page
1611 - 1615
Full Text
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