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Keywords:

  • luminescence;
  • near-infrared emission;
  • OLEDs;
  • phosphorescence;
  • porphyrinoids
Thumbnail image of graphical abstract

Red-shifting beyond red: The nonplanar porphyrin complex [Pt(tpbp)] (tpbp=tetraphenyltetrabenzoporphyrin) has been used as a phosphorescent dopant in highly efficient electrophosphorescent devices that emit in the near-infrared region (see normalized emission spectrum). The high efficiencies of these NIR devices make them amenable to many night-vision display and sensing applications.