Composition comprising at least one emitter compound and at least one polymer having conjugation-interrupting units
AssigneeMerck Patent GmbH
InventorsJunyou Pan, Rémi Manouk Anémian, Niels Schulte, Aurélie Ludemann, Thomas Eberle, Susanne Heun
Life of this patent
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Abstract
The present invention relates to a composition, containing at least one emitter compound and at least one polymer with conjugation-interrupting units, to the use of said composition in an optoelectronic apparatus and to an optoelectronic apparatus which contains said inventive composition.
Claims26
Composition comprising at least one triplet emitter compound and at least one polymer used as matrix material for the triplet emitter compound, characterised in that the polymer comprises at least one structural unit of the general formula I,
- where the following applies to the symbols and indices used:
- A is on each occurrence, independently of one another, a conjugation-interrupting unit selected from the group consisting of A-1d to A1p,
- where Ar1, Ar2 and Ar3 each, independently of one another, denote an aromatic or heteroaromatic group having 5 to 60 ring atoms, two of the radicals R1 to R4 or one of the radicals R1 to R4 and one of the groups Ar1, Ar2 and Ar3 form a bond to FG in the general formula I or FG1 in the general formula Ia and a further structural unit, which may be identical to or different from the structural unit of the formula I, and/or R1, R2, R3 and R4 each, independently of one another, denote alkylene, cycloalkylene, alkylsilylene, silylene, arylsilylene, alkylalkoxyalkylene, arylalkoxyalkylene, alkylthioalkylene, phosphine, phosphine oxide, sulfone, alkylenesulfone, sulfone oxide, alkylene sulfone oxide, where the alkylene group in each case has, independently of one another, 1 to 12 C atoms and where one or more H atoms may be replaced by F, Cl, Br, I, alkyl, heteroalkyl, cycloalkyl, an aryl or heteroaryl group,
- FG is on each occurrence, independently of one another, an opto-electronic functional group, and
- n is greater than 1.
Polymer, characterised in that it comprises at least one structural unit of the general formula I used as matrix material a the triplet emitter compound
- where the following applies to the symbols and indices used:
- A is on each occurrence, independently of one another, a conjugation-interrupting unit selected from the group consisting of A-1d to A1p,
- where Ar1, Ar2 and Ar3 each, independently of one another, denote an aromatic or heteroaromatic group having 5 to 60 ring atoms, two of the radicals R1 to R4 or one of the radicals R1 to R4 and one of the groups Ar1, Ar2 and Ar3 form a bond to FG in the general formula I or FG1 in the general formula Ia and a further structural unit, which may be identical to or different from the structural unit of the formula I, and/or R1, R2, R3 and R4 each, independently of one another, denote alkylene, cycloalkylene, alkylsilylene, silylene, arylsilylene, alkylalkoxyalkylene, arylalkoxyalkylene, alkylthioalkylene, phosphine, phosphine oxide, sulfone, alkylenesulfone, sulfone oxide, alkylene sulfone oxide, where the alkylene group in each case has, independently of one another, 1 to 12 C atoms and where one or more H atoms may be replaced by F, Cl, Br, I, alkyl, heteroalkyl, cycloalkyl, an aryl or heteroaryl group,
- FG is on each occurrence, independently of one another, an opto-electronic functional group, and
- n is greater than 1.
Dependencies are inferred from the claim text.