Search results for: TADF,OLEDS,HEAVY-ATOMEFFECT,ORGANICEMISSIVEMATERIALS,FRET,HYPERFLUORESCENCE

• Application of the Heavy-Atom Effect for (Sub)microsecond Thermally Activated Delayed Fluorescence and an All-Organic Light-Emitting Device with Low-Efficiency Roll-off

  Publication

  • M. Mońka
  • S. Gogoc
  • K. Kozakiewicz
  • V. Ievtukhov
  • D. Grzywacz
  • O. Ciupak
  • A. Kubicki
  • P. Bojarski
  • P. Data
  • I. E. Serdiuk

  - ACS Applied Materials & Interfaces - Year 2024

  Thefeatureof abundantandenvironmentallyfriendlyheavyatoms(HAs)like bromineto acceleratespin-forbiddentransitionsin organicmoleculeshas beenknownforyears.In combinationwiththe easinessof incorporation,brominederivativesof organicemittersshowingthermallyactivateddelayedfluorescence(TADF)emergeas a cheapand efficientsolutionforthe slowreverseintersystemcrossing(rISC)problemin suchemittersand strongefficiencyroll-offof all-organiclight-emittingdiodes(OLEDs).Here,we...

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• Experimental evidence of the excited-state mixing in the blue emitter for organic light-emitting diodes

  Publication

  • V. Ievtukhov
  • M. Mońka
  • O. Ciupak
  • I. Bylińska
  • P. Bojarski
  • K. Krzymiński
  • I. E. Serdiuk

  - Journal of Materials Chemistry C - Year 2025

  High hopes have been placed on organic emitters, which are supposed to solve the problem of low stability of blue OLEDs. A peculiar phenomenon of thermally activated delayed fluorescence (TADF), which brought such emitters to the range of the top-studied materials for organic optoelectronics within the last decade, remains poorly understood. Here, we report the results of comprehensive photophysical studies of one of the most successful...

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