Composition, method for manufacturing thin film, and method for manufacturing light-emitting element
View Patent ↗It is an object to provide a composition in which an anthracene derivative is dissolved and a technique in which a thin film that has a favorable film quality is formed by a wet process using the composition. In addition, it is another object to manufacture a highly reliable light-emitting element using the composition at low cost with high productivity. A composition having a solvent and an anthracene derivative having one anthracene structure and one carbazolyl group which is bonded to the anthracene structure directly or through a phenyl group is formed. A thin film with a favorable film quality can be formed by a wet process using the composition. Accordingly, a highly reliable light-emitting element can be manufactured using such a thin film.
1. A composition comprising:
an anthracene derivative which is represented by a general formula (G31-1); and
a solvent,
wherein Ar 1 and Ar 2 each represent a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, Ar 4 represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and R 11 represents hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.
2. A composition comprising:
an anthracene derivative which is represented by a general formula (G31-2); and
a solvent,
wherein Ar 1 and Ar 2 each represent a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, R 11 represents hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and R 12 to R 16 each represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms.
3. A composition comprising:
an anthracene derivative which is represented by a general formula (G31-3); and
a solvent,
wherein Ar 1 and Ar 2 each represent a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and R 11 represents hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.
4. The composition according to claim 1 , wherein the solvent has an aromatic ring.
5. The composition according to claim 2 , wherein the solvent has an aromatic ring.
6. The composition according to claim 3 , wherein the solvent has an aromatic ring.
7. A method for manufacturing a thin film, wherein the composition according to claim 1 is applied to a substrate and the solvent is removed.
8. A method for manufacturing a thin film, wherein the composition according to claim 2 is applied to a substrate and the solvent is removed.
9. A method for manufacturing a thin film, wherein the composition according to claim 3 is applied to a substrate and the solvent is removed.
10. A method for manufacturing a thin film, wherein the composition according to claim 1 is applied to a substrate and the solvent is removed by heat treatment.
11. A method for manufacturing a thin film, wherein the composition according to claim 2 is applied to a substrate and the solvent is removed by heat treatment.
12. A method for manufacturing a thin film, wherein the composition according to claim 3 is applied to a substrate and the solvent is removed by heat treatment.
13. A method for manufacturing a light-emitting element comprising the steps of:
forming a first electrode;
forming a layer containing a light-emitting substance by application of the composition according to any one of claims 1 to 3 to the first electrode and then removal of the solvent; and
forming a second electrode over the layer containing a light-emitting substance.
14. The method for manufacturing a light-emitting element according to claim 13 , wherein a functional layer is formed by a coating method on at least one side of the first electrode side and the second electrode side of the layer containing a light-emitting substance.
15. The method for manufacturing a light-emitting element according to claim 13 , wherein a functional layer is formed by an evaporation method on at least one side of the first electrode side and the second electrode side of the layer containing a light-emitting substance.