Search results for: TADF

• Engineering TADF, Mechanochromism, and Second Harmonic Up- conversion Properties in Regioisomeric Substitution Space

  Publication

  • S. Sappati
  • A. Chatterjee
  • C. Joy
  • M. Lahiri
  • M. Pankaj
  • P. Hazra

  - Chemical Science - Year 2023

  This research article explores the distinct TADF efficiency of three donor-acceptor based regio-isomers: DPAOCN (ortho- isomer), DPAMCN (meta-isomer), and DPAPCN (para-isomer). DPAPCN exhibits maximum TADF efficiency in both solution and solid-state with an impressive reverse inter-system crossing (RISC) rate of ~ 106 s-1; the underlying cause being the minimum singlet-triplet splitting energy or ∆EST and maximum SOC (spin-orbit...

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• 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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