P‐218: High‐Efficiency White Organic Light‐Emitting Diodes Using Hybrid‐Spacer

Abstract The authors have demonstrated high‐efficient white organic light‐emitting diodes (WOLEDs) using three‐emitting materials, 4″‐(2,2‐diphenylvinyl)‐1‐[4‐(N,N‐diphenylamino)‐styryl]‐terphenyl (PVAS‐tPh) as a blue emission, fac‐tris(2‐phenypyridine) iridium(III) (Ir(ppy) 3 ) as a green emission, bis(5‐benzoyl‐2‐phenylpyridinato‐C,N)iridium(III) (acetylacetonate) ((Bzppy) 2 Ir(III)acac) as a red emision. for higher efficiency, hybrid‐spacer …