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Keywords:

  • charge transport;
  • dibenzofurans;
  • quantum efficiency;
  • substituent effects;
  • triplet energy
Thumbnail image of graphical abstract

A twist in the tail: The effect of varying the substitution position of dibenzofuran on its photophysical properties and organic light-emitting diode device performance was systematically investigated by synthesizing three compounds with 2-, 3- and 4-substitution patterns (see scheme). The proper selection of substitution position can control the photophysical properties and performance of the materials.