Patent ID: 7232618
Filing Date: 2007-06-19
Classification: C09K,H01L,Y10S

Abstract:
1. An organic light-emitting device comprising a pair of electrodes comprising an anode and a cathode, and one or more layers containing an organic compound, the layers being sandwiched between the pair of the electrodes, wherein at least one layer of the layers containing an organic compound contains a compound represented by the following general formula (1) wherein in the formula, M is an iridium atom, P and Q each are a substituted or unsubstituted aromatic hydrocarbon group or a substituted or unsubstituted aromatic heterocyclic group, and P and Q constitute a chelate ligand; P and Q may form a condensed ring with each other; L 1 and L 2 each are a ligand or an oxygen atom that binds to M by a double bond; and L 1 and L 2 may form a condensed ring with each other to become a two-coordinate chelate ligand; X represents a counter ion of an anion or a cation; a is an integer of 1 to 3; b and c are each an integer of 0 to 4; and d is an integer of 0 to 3, provided that P, Q, L 1 , L 2 , and X each may be the same or different if there are more than one of these.