Electroluminescent properties of naphthalene end-capping bis-anthracene derivatives

초록

We designed naphthalene moieties end-capping bis-anthracene derivatives and characterized their photophysical properties. We fabricated two set of devices with the structure of ITO /2-TNATA (60nm) /NPB (10nm) /emitter (1-3) (40nm) /Alq(3) (15nm) /Liq (2nm) /Al for devices 1B-3B and same structure without 2-TNATA for 1A-3A. A device using 2-TNATA exhibited luminous efficiency of 5.98cd/A, power efficiency of 3.09lm/W and external quantum efficiency of 3.49% at 200cd/m(2), respectively, while a same device without 2-TNATA layer showed 3.52cd/A, 1.79lm/W, and 2.22% at 200cd/m(2), respectively.

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