Nitrogen-containing heterocyclic derivative and organic electroluminescence element using nitrogen-containing heterocyclic derivative
2009
Disclosed are a nitrogen-containing heterocyclic derivative having a specific structure comprising a pyrazine skeleton in the center thereof, a hole-injecting material or hole transport material for an organic electroluminescence (EL) element which comprises the nitrogen-containing heterocyclic derivative, a luminescence material for an organic EL element, an electron-injecting material or electron transport material for an organic EL element, an organic EL element which comprises one or a plurality of organic layers interposed between a cathode and an anode and in which at least one of the organic layers comprises the nitrogen-containing heterocyclic derivative, and a device comprising the organic EL element. The organic EL element can exhibit higher luminescence brightness and higher luminescence efficiency than the conventional organic EL element even at a low voltage.
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