6-MEMBER RING STRUCTURE USED IN ELECTROLUMINESCENT DEVICES
An organic material having a 6-member ring structure represented by the following formulae (I), wherein: ring A, ring B, and ring C each include substituted or un-substituted aromatic rings comprising 6 to 60 carbon atoms, or substituted or un-substituted heteroaromatic rings comprising 4 to 60 carbon atoms, and ring A and ring C form a fused aromatic or heteroaromatic structure; X is a carbon atom, a nitrogen atom, a sulfur atom, a silicon atom, an oxygen atom, a phosphorus atom, a selenium atom, or a germanium atom.
1 . An organic material having a 6-member ring structure represented by the following formulae (I),
wherein:
ring A, ring B, and ring C each include substituted or un-substituted aromatic rings comprising 6 to 60 carbon atoms, or substituted or un-substituted heteroaromatic rings comprising 4 to 60 carbon atoms, and ring A and ring C form a fused aromatic or heteroaromatic structure; X is a carbon atom, a nitrogen atom, a sulfur atom, a silicon atom, an oxygen atom, a phosphorus atom, a selenium atom, or a germanium atom.
2 . The organic material having a 6-member ring structure of claim 1 is a molecule or a polymer or mixture thereof.
3 . The organic material having a 6-member ring structure of claim 1 is a molecule represented by formula (II)
(Y 1 )y 1 -formula (I)-(Y 2 )y 2 (II)
wherein Y 1 and Y 2 are the same or different and each individually represent a substituted or unsubstituted alkyl, alkenyl, alkynyl, aryl, heteroaryl or alkoxy of 1 to 60 carbons, and y 1 and y 2 are integers from 0 to 6.
4 . The organic material having a 6-member ring structure of claim 1 is a polymer represented by repeating units of formula (III) or (IV)
wherein:
L is a direct bond or a carbon linking group having 1 to 40 carbon atoms or a non-carbon linking group having 0 to 40 carbon atoms.
5 . An electroluminescent material comprising one or more material having a 6-member ring structure of claim 1 .
6 . An electroluminescent device, comprising
a) a spaced-apart anode and cathode; and
b) an organic layer disposed between the spaced-apart anode and cathode and including a material of claim 1 .
7 . In an electroluminescent device comprising one or more active layers, wherein at least one of these active layers includes one or more organic material having a 6-member ring structure of claim 1 .
8 . A method of making an electroluminescent device, comprising:
a) providing a spaced-apart anode and cathode; and
b) depositing an organic layer between the spaced-apart anode and cathode and including a material of claim 1 .
9 . The organic material having a 6-member ring structure of claim 1 wherein ring A, ring B, and ring C each are substituted or un-substituted phenyl ring or pyrido ring.
10 . The organic material having a 6-member ring structure of claim 1 where X is a carbon atom, a nitrogen atom, a sulfur atom, or an oxygen atom.
11 . The organic material having a 6-member ring structure of claim 3 wherein ring A, ring B, and ring C each are substituted or un-substituted phenyl ring or pyrido ring.
12 . The organic material having a 6-member ring structure of claim 3 where X is a carbon atom, a nitrogen atom, a sulfur atom, or an oxygen atom.
13 . The organic material having a 6-member ring structure of claim 4 wherein ring A, ring B, and ring C each are substituted or un-substituted phenyl ring or pyrido ring.
14 . The organic material having a 6-member ring structure of claim 4 where X is a carbon atom, a nitrogen atom, a sulfur atom, or an oxygen atom.
15 . The organic material having a 6-member ring structure of claim 5 wherein ring A, ring B, and ring C each are substituted or un-substituted phenyl ring or pyrido ring.
16 . The organic material having a 6-member ring structure of claim 5 where X is a carbon atom, a nitrogen atom, a sulfur atom, or an oxygen atom.
17 . The organic material having a 6-member ring structure of claim 6 wherein ring A, ring B, and ring C each are substituted or un-substituted phenyl ring or pyrido ring.
18 . The organic material having a 6-member ring structure of claim 6 where X is a carbon atom, a nitrogen atom, a sulfur atom, or an oxygen atom.
19 . The organic material having a 6-member ring structure of claim 7 wherein ring A, ring B, and ring C each are substituted or un-substituted phenyl ring or pyrido ring.
20 . The organic material having a 6-member ring structure of claim 7 where X is a carbon atom, a nitrogen atom, a sulfur atom, or an oxygen atom.
21 . The organic material having a 6-member ring structure of claim 8 wherein ring A, ring B, and ring C each are substituted or un-substituted phenyl ring or pyrido ring.
22 . The organic material having a 6-member ring structure of claim 8 where X is a carbon atom, a nitrogen atom, a sulfur atom, or an oxygen atom.