Abstract:
The invention relates to a method for producing (meth)acrylates (F) of N-hydroxyalkylated imidazoles by esterifying N-hydroxyalkylated imidazoles (I) with (meth)acrylic acid (S) in the presence of at least one catalyst (K) or by transesterifying it with at least one (meth)acrylic ester (D). In said formula (I), R 1 and R 2 independently represent hydrogen or C 1 -C 20 alkyl, R 3 , R 4 and R 5 independently represent hydrogen or C 1 -C 20 alkyl, C 1 -C 20 alkylcarbonyl, C 2 -C 20 alkenyl, C 2 -C 20 alkenylcarbonyl, C 2 -C 20 alkinyl, C 2 -C 20 alkinylcarbonyl, C 3 -C 15 cycloalkyl, C 3 -C 15 cycloalkylcarbonyl, aryl, arylcarbonyl, a heterocycle or a halogen atom, and m and n are integers in the range of 0 to 20, wherein m and n cannot be 0 at the same time, and wherein the respective entities that are embraced by the variables m and n can be contained in any order, and wherein, when m = 2, the groups R 1 and R 2 are independent of each other in the respective entities.
Abstract:
The present invention relates to 9,9'-spirobifluorene compounds of general formula I wherein the variables have the meaning R11, R12, R21, R22,R31, R32, R41 and R42 independently of each other aryl or hetaryl, S1, S2, S3 and S4 independently of each other &pgr;-conjugated, bivalent moieties, n1, n2, n3 and n4 independently of each other 0, 1, 2 or 3, with the proviso that n1 + n2 + n3 + n4 ≠ 0, in case n1 ≥ 2, n2 ≥ 2, n3 ≥ 2 and/or n4 ≥ 2 the moieties S1, S2, S3 and S4 are identical to or different from each other and in case n1 + n2 + n3 + n4 = 12 not all of the radicals R11, R12, R21, R22, R31, R32, R41 and R42 are identical, to the use of compounds of general formula I in organic electronics applications, especially in organic field effect transistors, in organic photodetectors and organic solar cells, specifically in dye-sensitized solar cells and bulk heterojunction solar cells, and to an organic field effect transistor, a dye-sensitized solar cell and a bulk heterojunction solar cell comprising compounds of general formula I.
Abstract:
The present invention relates 9,9'-spirobifluorene compounds of general formula (I) wherein the variables R11, R12, R21, R22, R31, R32, R41 and R42 independently of each other have the meaning of aryl or hetaryl, with the proviso that not all of the radicals R11, R12, R21, R22, R31, R32, R41 and R42 are identical, to the use of compounds of general formula I in organic electronics applications, especially in organic field effect transistors, in organic photodetectors and organic solar cells, specifically in dye-sensitized solar cells and bulk heterojunction solar cells, and to an organic field effect transistor, a dye-sensitized solar cell and a bulk heterojunction solar cell comprising compounds of general formula I.
Abstract:
Disclosed is a process for producing a photoelectric conversion device comprising a dye-sensitized metal oxide semiconductor, which is treated with an essentially transparent hydroxamic acid derivative or a salt thereof. Also disclosed are the photoelectric conversion device obtained by the said process and the use of the essentially transparent hydroxamic acid derivative for enhancing the energy conversion efficiency ? of dye-sensitized photoelectric conversion device.
Abstract:
Disclosed is a process for producing a photoelectric conversion device comprising a dye-sensitized metal oxide semiconductor, which is treated with an essentially transparent hydroxamic acid derivative or a salt thereof. Also disclosed are the photoelectric conversion device obtained by the said process and the use of the essentially transparent hydroxamic acid derivative for enhancing the energy conversion efficiency &eegr; of dye-sensitized photoelectric conversion device.
Abstract:
Hole conductor material containing compounds (Q) are new. Hole conductor material containing compounds (Q) of formula ((IL) n-Linker-(HTM) n) (I), ((IL-Linker) p-HTM) (II) or (IL-(Linker-HTM) p) (III) are new. IL : a salt group having at least a cation and at least an anion, where at least one of the ion is organic, in (I) and (II) the salt group has binding site to the linker group, and in (III), the salt group q has a binding site to the left group of the linker group; n, m : at least 1; p, q : at least 2; linker : a chemical bond or (n+m) valent 1-50C-organic residue (in case of (I)), or a chemical bond or 1-50C-bivalent residue (in case of (II) and (III)); and HTM : hole conductor material (p-semiconductor) containing group.