Organic electroluminescent device
View Patent ↗An organic electroluminescent device comprising: a pair of electrodes; and at least one organic compound layer between the pair of electrodes, the at least one organic compound layer including a light emitting layer, wherein the light emitting layer contains at least one host material and at least one luminescent material, and the host material is a compound represented by the formula (I) as defined herein.
1. An organic electroluminescent device comprising:
a pair of electrodes; and
at least one organic compound layer between the pair of electrodes, the at least one organic compound layer including a light emitting layer,
wherein the light emitting layer contains at least one host material and at least one luminescent material, and the host material is a compound represented by the formula (X):
wherein M 101 represents a metal ion of magnesium, aluminum, zinc or gallium; L 101 represents a ligand; Q 101 represents a group necessary to form a nitrogen-containing heterocyclic ring; m 101 represents an integer of 2 or 3; m 102 represents 0; and X 102 represents a substituted or unsubstituted alkylene group, a carbonylene group or a sulfonylene group.
2. An organic electroluminescent device according to claim 1 , wherein M 101 represents a metal ion of magnesium, aluminum or zinc, X 102 is a carbonylene group, and Q 101 is a pyrazole ring, an imidazole ring, a pyridine ring, or a 5- or 6-membered condensed ring thereof.
3. An organic electroluminescent device according to claim 1 , wherein M 101 represents a metal ion of aluminum or zinc, X 102 is a carbonylene group, and Q 101 is a pyridine ring or a 5- or 6-membered condensed ring thereof.
4. An organic electroluminescent device according to claim 1 , wherein M 101 represents a metal ion of aluminum or zinc, X 102 is a carbonylene group, and Q 101 is a pyridine ring.