US 2012/0234380 A1 · TERRYLENE COMPOUNDS, PREPARATION THEREOF AND USE THEREOF IN ORGANIC SOLAR CELLS

Abstract

A terrylene compound of formula I: wherein R1 to R4 are each independently an unsubstituted or substituted alkyl, aryl, thiophenyl or oligothiophenyl group, or a hydrogen atom. Two adjacent radicals selected from R1 to R4, together with the carbon atoms of the benzene ring to which they are bonded, may also form a fused ring system having 1 to 8 additional rings. With the carbon atoms to which it is bonded, A forms a fused monocyclic, dicyclic, tricyclic, tetracyclic, pentacyclic or hexacyclic ring system which optionally contains one or more independently selected substituents. A process for preparing the terrylene compound. An organic solar cell with a photoactive region including at least one organic donor material in contact with at least one organic acceptor material, the donor material and the acceptor material forming a donor-acceptor heterojunction, and the photoactive region including at least one such terrylene compound.

Claims25

Dependent claims

A terrylene compound of the general formula (I)

in which
R1 and R4 are each independently selected from hydrogen and in each case unsubstituted or substituted alkyl, aryl, thiophenyl and oligothiophenyl;
R2 and R3 are each independently selected from hydrogen and in each case unsubstituted or substituted alkyl, aryl, thiophenyl and oligothiophenyl;
where in each case at least two adjacent radicals selected from the R1, R2, R3 and R4 radicals, together with the carbon atoms of the benzene ring to which they are bonded, may also be a fused ring system having 1, 2, 3, 4, 5, 6, 7 or 8 further rings, and
A with the carbon atoms to which it is bonded is a fused monocyclic, dicyclic, tricyclic, tetracyclic, pentacyclic or hexacyclic ring system which optionally bears one or more independently selected substituents.

2 more elements

A terrylene compound according to any of the preceding claims, in which A is selected from groups of the general formulae (VI.1), (VI.2), (VI.3), (VI.4), (VI.5) and (VI.6)

in which
in each case represents the bonding site to the terrylene base skeleton,
R23 is hydrogen, alkyl, aryl, alkaryl or aralkyl,
R23a is hydrogen, alkyl, aryl, alkaryl or aralkyl,
R24, R25 are each independently alkyl, aryl, alkaryl or aralkyl, where two R24 and/or R25 radicals bonded to adjacent carbon atoms may also be a fused-on benzene ring,
R26 is alkyl, aryl, alkaryl or aralkyl, where two R26 radicals bonded to adjacent carbon atoms may be a fused-on benzene ring,
R27, R28 are each independently alkyl, aryl, alkaryl or aralkyl, where two R27 and/or R28 radicals bonded to adjacent carbon atoms may also be a fused-on benzene ring,
R29 is alkyl, aryl, alkaryl or aralkyl, where two R29 radicals bonded to adjacent carbon atoms may also be a fused-on benzene ring,
R30, R31 are each independently cyano, alkyl, aryl, alkaryl or aralkyl,
R32, R33 are each independently cyano, alkyl, aryl, alkaryl or aralkyl,
m, n, u, v are each independently 0, 1, 2 or 3, and
o, p, q, r, s, t are each independently 0, 1 or 2.

9 more elements

Dependencies are inferred from the claim text.

Terrylene compounds, preparation thereof and use thereof in organic solar cells

Life of this patent

Terrylene compounds, preparation thereof and use thereof in organic solar cells

Life of this patent

Abstract

Claims25