Mixtures for producing photoactive layers for organic solar cells and organic photodetectors
AssigneeBASF SE
InventorsMeerholz Klaus, Frank Wuerthner
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Abstract
The present invention relates to the use of mixtures which comprise compounds D-A in which D is a donor moiety and A is an acceptor moiety, especially to the use of mixtures which comprise compounds D-A and fullerene derivatives, for producing photoactive layers for organic solar cells and organic photodetectors, to corresponding organic solar cells and organic photodetectors, and to mixtures which comprise compounds D-A and fullerene derivatives.
Claims13
An organic solar cell or an organic photodetector comprising:
- a photoactive layer, wherein said photoactive layer comprises
- K1) one or more compounds of the formula k1
- D-A (k1)
- as an electron donor or electron acceptor, in which
- D is a donor moiety which comprises at least one carbon-carbon or carbon-heteroatom double bond and at least one unfused or fused carbo- or heterocyclic ring,
- A is an acceptor moiety which comprises at least one carbon-carbon or carbon-heteroatom double bond and at least one unfused or fused carbo- or heterocyclic ring,
- and the donor moiety D and the acceptor moiety A are ir-conjugated to one another,
- and
- K2) one or more compounds which act correspondingly as electron acceptors or electron donors toward component K1).
(canceled)
A mixture comprising
- K1) one or more compounds of the general formula k1
- D-A (k1)
- in which
- D is a donor moiety which comprises at least one carbon-carbon or carbon-heteroatom double bond and at least one unfused or fused carbo- or heterocyclic ring,
- A is an acceptor moiety which comprises at least one carbon-carbon or carbon-heteroatom double bond and at least one unfused or fused carbo- or heterocyclic ring,
- and the donor moiety D and the acceptor moiety A are 7r-conjugated to one another,
- and
- K2) one or more fullerenes fullerene derivatives, or both.
A method of forming a photoactive layer of an organic solar cell or an organic photodetector, comprising:
- mixing
- one or more compounds of the formula k1
- D-A (k1)
- as an electron donor or electron acceptor, in which
- D is a donor moiety which comprises at least one carbon-carbon or carbon-heteroatom double bond and at least one unfused or fused carbo- or heterocyclic ring,
- A is an acceptor moiety which comprises at least one carbon-carbon or carbon-heteroatom double bond and at least one unfused or fused carbo- or heterocyclic ring,
- and the donor moiety D and the acceptor moiety A are 7-conjugated to one another;
- and
- one or more compounds which act correspondingly as electron acceptors or electron donors toward component K1).
Dependencies are inferred from the claim text.