USE OF TRIARYLAMINE DERIVATIVES AS HOLE-CONDUCTING MATERIALS IN ORGANIC SOLAR CELLS AND ORGANIC SOLAR CELLS CONTAINING SAID TRIARYLAMINE DERIVATIVES
申请人:Bergmann Hermann
公开号:US20110297235A1
公开(公告)日:2011-12-08
The present invention relates to the use of compounds of the general formula I
in which
A
1
, A
2
, A
3
are each independently divalent organic units which may comprise one, two or three optionally substituted aromatic or heteroaromatic groups, where, in the case of two or three aromatic or heteroaromatic groups, two of these groups in each case are joined to one another by a chemical bond and/or via a divalent alkyl radical,
R
1
, R
2
, R
3
are each independently R, OR, NR
2
, A
3
-OR or A
3
-NR
2
substituents,
R is alkyl, aryl or a monovalent organic radical which may comprise one, two or three optionally substituted aromatic or heteroaromatic groups, where, in the case of two or three aromatic or heteroaromatic groups, two of these groups in each case are joined to one another by a chemical bond and/or via a divalent alkyl or NR′ radical,
R′ is alkyl, aryl or a monovalent organic radical which may comprise one, two or three optionally substituted aromatic or heteroaromatic groups, where, in the case of two or three aromatic or heteroaromatic groups, two of these groups in each case are joined to one another by a chemical bond and/or via a divalent alkyl radical,
and
n at each instance in formula I is independently 0, 1, 2 or 3,
with the proviso that the sum of the individual values n is at least 2 and at least two of the R
1
, R
2
and R
3
radicals are OR and/or NR
2
substituents,
as hole-conducting materials in organic solar cells.
The present invention further relates to organic solar cells which comprise these compounds.