Abstract:
The present invention relates to compounds of the formulae Ia,Ib and Ic in which R are identical or different aryloxy, arylthio, hetaryloxy, hetarylthio, aryl, diarylamino or dialkylamino radicals, n when m is 0: 0, 1, 2 or 3, when m is 1: 0, 1, 2, 3, 4 or 5, m is 0 or 1, A is -COOM, -SO
Abstract:
Use of rylene derivatives (I) in which the variables are defined as follows: X together Formulae (x1) (x2) (x3) both -COOM; Y a radical -L-NR
Abstract:
The present invention relates to heptarylene- and octarylenetetracarboximides of the general formula (I) to precursors thereof or mixtures thereof, and to processes for their preparation and to their use.
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.