A Mononuclear [PtCl(tpy)]PF Complex for a Yellow Emitting Solution-Processable Organic Light Emitting Diode.

We report square planar mononuclear Pt(II)-complexes of terpyridines in the form of [PtCl(/)]PF as phosphorescent emitters (where = 4-(3-pyridine)2,2':6',2''-terpyridine and = 4'-(3-pyridinyl)-4,4''-di(-butyl)-2,2':6'2''-terpyridine). Complex showed emission at 534 nm in the DCM solution with photoluminescence quantum efficiency (Φ) = 14%, while in the mCBP host (5-wt % doped), the emission shifted to 584 nm with Φ = 37.8% and a phosphorescence lifetime (τ) of 37.