PropertyValue
?:abstract
  • We report a series of two-coordinate Au(I) and Cu(I) complexes (3a-3b and 5a-5b) as new organometallic thermally activated delayed fluorescence (TADF) emitters, which were based on the carbene-metal-carbazole model with pyridine-fused-1,2,3-triazolylidene (PyTz) ligand. The PyTz features small steric hindrance and low-energy LUMO (LUMO = -1.47 eV) locating over the π* orbitals of the whole ligand, which facilitates the intermolecular charge transfer (CT) between a donor (carbazole) and an accepter (PyTz). These compounds exhibit efficient TADF with microsecond lifetimes. Temperature-dependent PL kinetics of 3a supports a rather small energy gap between S1 and T1 (ΔES1-T1 = 60 meV). Further experiments reveal that there exist dual-emission properties from a monomer-dimer equilibrium in the solution, exhibiting single-component multicolor emission from blue to orange including white-light emission.
is ?:annotates of
?:creator
?:journal
  • Chemistry
?:license
  • unk
?:publication_isRelatedTo_Disease
?:source
  • WHO
?:title
  • Thermally Activated Delayed Fluorescence from d10 Metal Carbene Complexes via Intermolecular Charge Transfer and Multicolor Emission with a Monomer-Dimer Equilibrium
?:type
?:who_covidence_id
  • #33006821
?:year
  • 2020

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