Method for producing organic electroluminescence element, and organic electroluminescence element

摘要

A method for producing a luminescent organic film, the method including: coating a solution containing a π-electron conjugated compound precursor A-(B)m and at least one kind of a luminescent dye, where the π-electron conjugated compound precursor A-(B)m contains a leaving substituent; and applying external stimulus to the π-electron conjugated compound precursor A-(B)m to eliminate the leaving substituent thereof, so that the π-electron conjugated compound precursor A-(B)m is converted to a π-electron conjugated compound A-(C)m and an eliminated compound X—Y as in the following reaction formula (I):;

主权项

1. A method for producing a luminescent organic film, the method comprising:
coating a solution containing a π-electron conjugated compound precursor A-(B)m and at least one kind of a luminescent dye, where the π-electron conjugated compound precursor A-(B)m contains a leaving substituent; and applying external stimulus to the π-electron conjugated compound precursor A-(B)m to eliminate the leaving substituent thereof, so that the π-electron conjugated compound precursor A-(B)m is converted to a π-electron conjugated compound A-(C)m and an eliminated compound X—Y as in the following reaction formula (I): where in the reaction formula (I), A is a π-electron conjugated substituent, B is a solvent-soluble substituent containing at least a structure represented by General Formula (II), m is a natural number, C is a partial structure containing at least a structure represented by General Formula (III), the solvent-soluble substituent B in the π-electron conjugated compound precursor A-(B)m is linked via a covalent bond with an atom on the π-electron conjugated substituent A or ring-fused with a carbon atom on the π-electron conjugated substituent A, and when m is 2 or more, the solvent-soluble substituents B which are 2 or more may be identical or different and may be linked together to form a ring; and in the General Formulas (II) and (III), one of X and Y is a hydrogen atom and the other is the leaving substituent, R1, R2 and R3, which may be identical or different, are each a hydrogen atom or a substituent and may form a ring together or may form a ring via a covalent bond with the π-electron conjugated substituent A, and when m is 2 or more, the solvent-soluble substituents B which are 2 or more may be identical or different and may be linked together to form a ring wherein the luminescent dye is represented by General Formula A′-(C′)m′ and is contained in the solution as a luminescent dye precursor A′-(B′)m′ containing a leaving substituent, and wherein the leaving substituent of the luminescent dye precursor A′-(B′)m′ is eliminated by action of the external stimulus, so that the luminescent dye precursor A′-(B′)m′ is converted to the luminescent dye A′-(C′)m′ and an eliminated compound X′—Y′ as in the following reaction formula (I′): where in the reaction formula (I′), A′ is a π-electron conjugated substituent, B′ is a solvent-soluble substituent containing at least a structure represented by General Formula (II′), m′ is a natural number, C′ is a partial structure containing at least a structure represented by General Formula (III′), the solvent-soluble substituent B′ in the luminescent dye precursor A′-(B′)m′ is linked via a covalent bond with an atom on the π-electron conjugated substituent A′ or ring-fused with a carbon atom on the π-electron conjugated substituent A′, and when m′ is 2 or more, the solvent-soluble substituents B′ which are 2 or more may be identical or different and may be linked together to form a ring; and in the General Formulas (II′) and (III′), one of X′ and Y′ is a hydrogen atom and the other is the leaving substituent, R′1, R′2 and R′3, which may be identical or different, are each a hydrogen atom or a substituent and may form a ring together or may form a ring via a covalent bond with the π-electron conjugated substituent A′, and when m′ is 2 or more, the leaving substituents of the solvent-soluble substituents B′ which are 2 or more may be identical or different and may be linked together to form a ring.