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Two multiresonant thermally activated delayed fluorescence (MR‐TADF) emitters are presented and it is shown how further borylation of a deep‐blue MR‐TADF emitter, DIDOBNA‐N, both blueshifts and narrows the emission producing a new near‐UV MR‐TADF emitter, MesB‐DIDOBNA‐N, are shown. DIDOBNA‐N emits bright blue light (ΦPL = 444 nm, FWHM = 64 nm, ΦPL = 81%, τd = 23 ms, 1.5 wt% in TSPO1). The deep‐blue...
High‐efficiency pure blue phosphorescent organic light‐emitting diodes (OLEDs) remain one of the grand challenges, principally because the emissive complexes employed either do not possess sufficiently high photoluminescence quantum yields or exhibit unsatisfactory Commission International de l'Éclairage (CIE) coordinates. Here two deep‐blue‐emitting homoleptic iridium(III) complexes are reported...
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