852111-98-9Relevant academic research and scientific papers
Selective F or Br Functionalization of Dibenzofuran for Application as Host Materials of Phosphorescent Organic Light-Emitting Diodes
Yu, Ji Gwang,Byeon, Sung Yong,Han, Si Hyun,Lee, Jun Yeob
, p. 16044 - 16050 (2017)
Four dibenzofuran-type host materials substituted with a carbazolylcarbazole moiety were synthesized to investigate the effect of substitution position on the material parameters and device performances of host materials. The carbazolylcarbazole moiety was substituted at the 1-, 2-, 3-, and 4-positions of dibenzofuran by F or Br for a comprehensive study of the positional effect of dibenzofuran-derived host materials. Systematic synthesis and comparison of the four host materials revealed that 1-, 2-, and 4-position modification was better than 3-position modification for high triplet energy and high external quantum efficiency.
1-FUNCTIONALIZED DIBENZOFURANS AND DIBENZOTHIOPHENES FOR ORGANIC LIGHT EMITTING DIODES (OLEDS)
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Page/Page column 91; 92, (2016/07/05)
The present invention relates to compounds of formula(I), a process for their production and their use in electronic devices, especially electroluminescent devices. When used as charge transport material and/or host material for phosphorescent emitters in electroluminescent devices, the compounds of formula I may provide improved efficiency and reduced driving voltage of electroluminescent devices.
