2022
DOI: 10.1039/d2tc00928e
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Pure blue phosphorescent platinum(ii) emitters supported by NHC-based pincer type ligands with unitary emission quantum yields

Abstract: A series of phosphorescent Pt(II) complexes containing a bis-N-heterocyclic carbene (NHC)-pincer-type ligand and a monodentate ancillary ligand, [Pt(CNHC^CAr^CNHC)L] (where L = chloride, 3,5-bis(trifluoromethyl)pyrazolate (Pz), cyanide or isocyanoborates (CNBPh3 and CNB(C6F5)3),...

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Cited by 16 publications
(14 citation statements)
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“…A hyperphosphorescent device with IPr t BuPt as a dopant sensitizer and ν-DABNA as a terminal emitter is demonstrated to show a maximum EQE of 33.59% and color coordinates of (0.124, 0.148). It also revealed very mild efficiency roll-offs comparable to other hyper-OLED devices in the literature, 7,8,15,23,24,30–38 together with a high max. brightness of ∼30 000 cd m −2 .…”
Section: Introductionsupporting
confidence: 68%
“…A hyperphosphorescent device with IPr t BuPt as a dopant sensitizer and ν-DABNA as a terminal emitter is demonstrated to show a maximum EQE of 33.59% and color coordinates of (0.124, 0.148). It also revealed very mild efficiency roll-offs comparable to other hyper-OLED devices in the literature, 7,8,15,23,24,30–38 together with a high max. brightness of ∼30 000 cd m −2 .…”
Section: Introductionsupporting
confidence: 68%
“…N-heterocyclic carbine (NHC) Pt(II) complexes have been studied extensively due to the excellent virtues of Pt-C* (NHC) bonds. [10][11][12][13] As shown in the investigation by Strassner and co-workers, for the unsubstituted N-heterocyclic carbine (NHC) Pt(II) complex, the phosphorescence quantum yield was only 7%. 14 Changing the substituent in the 4-position can cause a significant influence on the observed quantum yield and on the decay lifetime.…”
Section: Introductionmentioning
confidence: 98%
“…The incorporation of N-heterocyclic carbene (NHC) donors into pincer ligands continues to provide new organometallic complexes with exciting catalytic 1 and optical 2 properties. Since emerging as isolable species, NHC ligands or their pro-ligands have increasingly competed with traditional phosphine ligands, typically providing increased though variable σ-donation, low π-acidity and bespoke steric profiles.…”
Section: Introductionmentioning
confidence: 99%