Organic electroluminescence device
View Patent ↗An organic electroluminescence device comprising at least an organic layer between a pair of electrodes, wherein the organic electroluminescence device further includes at least an interlocked compound. An organic electroluminescence device exhibiting a high light emission efficiency and excellent driving durability is provided.
1. An organic electroluminescence device comprising at least an organic layer between a pair of electrodes, wherein the organic electroluminescence device includes at least an interlocked compound,
wherein the interlocked compound is a compound represented by one of the following formula (I), (II) or (III):
wherein, in the formula (I), M 1 represents a metal; L 11 , L 12 , L 13 and L 14 each independently represent an atomic group coordinated to the metal; and Y 11 and Y 12 each independently represent a linking group;
wherein, in the formula (II), M 2 represents a metal; L 21 , L 22 , L 23 and L 24 each independently represent an atomic group coordinated to the metal; and Y 21 and Y 22 each independently represent a linking group;
wherein, in the formula (III), M 3 represents a metal; L 31 , L 32 , L 33 , L 34 , L 35 and L 36 each independently represent an atomic group coordinated to the metal; and Y 31 and Y 32 each independently represent a linking group, and
wherein a layer containing the interlocked compound is a hole injection layer.
2. The organic electroluminescence device according to claim 1 , wherein the layer containing the interlocked compound is formed by a wet coating process.
3. An organic electroluminescence device comprising at least an organic layer between a pair of electrodes, wherein the organic electroluminescence device includes at least an interlocked compound,
wherein the interlocked compound is a compound represented by one of the following formula (I), (II) or (III):
wherein, in the formula (I), M 1 represents a metal; L 11 , L 12 , L 13 and L 14 each independently represent an atomic group coordinated to the metal; and Y 11 and Y 12 each independently represent a linking group;
wherein, in the formula (II), M 2 represents a metal; L 21 , L 22 , L 23 and L 24 each independently represent an atomic group coordinated to the metal; and Y 21 and Y 22 each independently represent a linking group,
wherein, in the formula (III), M 3 represents a metal; L 31 , L 32 , L 33 , L 34 , L 35 and L 36 each independently represent an atomic group coordinated to the metal; and Y 31 and Y 32 each independently represent a linking group, and
wherein a layer containing the interlocked compound is a hole injection layer and a light emission layer.
4. The organic electroluminescence device according to claim 1 , wherein the interlocked compound is a compound represented by the following formula (I-A):
wherein, in the formula (I-A), Y a1 and Y a2 each independently represent a linking group; R a1 and R a2 each independently represent a substituent; m a1 and m a2 each independently represent an integer from 0 to 6; Xa represents an anion; and n represents a number equal to or larger than 0, determined so that the compound represented by the formula (I-A) becomes neutral.
5. The organic electroluminescence device according to claim 1 , wherein the interlocked compound is a compound represented by the following formula (II-A):
wherein, in the formula (II-A), Y b1 and Y b2 each independently represent a linking group; R b1 , R b2 , R b3 and R b4 each independently represent a substituent; and m b1 , m b2 , m b3 and m b4 each independently represent an integer from 0 to 3.
6. The organic electroluminescence device according to claim 1 , wherein the interlocked compound is a compound represented by the following formula (III-A):
wherein, in the formula (III-A), Y c1 and Y c2 each independently represent a linking group; R c1 , R c2 , R c3 , R c4 , R c5 and R c6 each independently represent a substituent; and m c1 , m c2 , m c3 , m c4 , m c5 and m c6 each independently represent an integer from 0 to 3.