Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Synthesis and Characterization of New Anthracene-Based Blue Host Material

  • So, Ki-Ho (Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University) ;
  • Park, Hyun-Tae (Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University) ;
  • Shin, Sung-Chul (Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University) ;
  • Lee, Sang-Gyeong (Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University) ;
  • Lee, Dong-Hui (School of Material Science & Engineering and Engineering Research Institute, Gyeongsang National University) ;
  • Lee, Kyeong-Hoon (LG Elite) ;
  • Oh, Hyeong-Yun (LG Elite) ;
  • Kwon, Soon-Ki (School of Material Science & Engineering and Engineering Research Institute, Gyeongsang National University) ;
  • Kim, Yun-Hi (Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University)
  • Published : 2009.07.20
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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 (${\lambda}_{max}$ = 410 nm) and in solid state (${\lambda}_{max}$ = 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)].

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