Efficient deep blue emitters for organic electroluminescent devices Available to Purchase

Highly efficient deep blue organic light emitting devices have been fabricated with a 4-(styryl)biphenyl-core based fluorescent dopant (SK-1) in the wide band gap 2-methyl-9,10-di(1-naphthyl)anthracene (⁠$α,α$-MADN) host system which achieved an electroluminescence efficiency of $5.0cd∕A$ and an external quantum efficiency of 4.2% at $20mA∕cm2$ with a saturated blue Commission Internationale de l’Eclairage coordinates of (0.15, 0.14) and a half-decay lifetime of $8000h$ at an initial brightness of $100cd∕m2$⁠. The current efficiency and electroluminescent color of SK-1 doped devices have been shown to be essentially immune to drive current density.