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US 8,940,415 B2Granted
Organic electroluminescent devices and metal complex compounds
AssigneeUDC Ireland Limited
InventorsKazumi Nii, Kousuke Watanabe, Tatsuya Igarashi, Seiji Ichijima, Toshihiro Ise
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Abstract
An organic electroluminescent device, which has a pair of electrodes and at least one organic layer including a luminescent layer between the pair of electrodes, wherein at least one layer between the pair of electrodes comprises at least one metal complex having a tridentate- or higher polydentate-chain structure ligand.
Claims7
An organic electroluminescent device, comprising:
- a pair of electrodes and at least one organic layer including a luminescent layer between the pair of electrodes, wherein at least one layer between the pair of electrodes comprises at least one metal complex having a polydentate-chain structure ligand, and wherein the metal complex is a compound represented by formula (2):
- wherein, M21 represents a metal ion;
- Y21, Y22 and Y23 each represent a single bond;
- Q21 and Q22 each represent an atomic group necessary to form a nitrogen-containing heterocycle, wherein the nitrogen-containing heterocycle is an unsubstituted pyridine;
- X21 and X22 each represent an oxygen atom, a sulfur atom, or a substituted or unsubstituted nitrogen atom;
- R21, R22, R23 and R24 each represent a hydrogen atom, an alkyl group, an aryl group, or a group that forms condensed rings by forming bonds between R21 and R22, or between R23 and R24;
- L25 represents a ligand to coordinate to M21;
- and n21 represents an integer of 0 to 4.
5 more elements
An organic electroluminescent device, comprising:
- a pair of electrodes and at least one organic layer including a luminescent layer between the pair of electrodes, wherein at least one layer between the pair of electrodes comprises at least one metal complex having a polydentate-chain structure ligand, and wherein the metal complex is a compound represented by formula (2):
- wherein, M21 represents a metal ion;
- Y21 represents a linking group, or a single bond;
- Y22 and Y23 each represent a single bond or a linking group;
- Q21 and Q22 each represent an atomic group necessary to form a nitrogen-containing heterocycle, wherein the nitrogen-containing heterocycle is an unsubstituted pyridine;
- a bond between Y21 and the ring formed with Q21, and a bond between Y21 and the ring formed with Q22 each represent a single bond;
- X21 and X22 each represent an oxygen atom, a sulfur atom, or a substituted or unsubstituted nitrogen atom;
- R21, R22, R23 and R24 each represent a hydrogen atom, an alkyl group, or an aryl group;
- L25 represents a ligand to coordinate to M21;
- and n21 represents an integer of 0 to 4.
7 more elements
Dependencies are inferred from the claim text.