Publication number: 20170018717
Abstract: The present invention relates to compounds of the formula I wherein X1, X2 are O or C(CN)2; A is selected from wherein, if present, X3, X4 are O or C(CN)2 and m, R4a, R4b, R5a, R5b, R6a, R6b, R6c, R6d, R7a, R7a, R8a, R8b, R9, R10a, R10b, Rm1, Rm2, Rm3 and Rm4 are as defined in the claims and description. The present invention also relates to a method for their preparation and their use as semiconductors, in particular as semiconductors in organic electronics and organic photovoltaics.
Type:
Application
Filed:
February 24, 2015
Publication date:
January 19, 2017
Inventors:
THOMAS GESSNER, Helmut REICHELT, Thomas WEITZ, Michael EUSTACHI, Daniel JAENSCH, Long CHEN, Artem N. SKABEEV, Klaus MUELLEN, Hans REICHERT
Patent number: 9428518
Abstract: A sensitizer in a dye-sensitized solar cell, including a compound of formula (I?) where: R1 and R2 are hydrogen, a halogen, an alkyl group, a cycloalkyl group, an aryl group, a hetaryl group, an alkoxy group, an aryloxy group, an arylthio group, a hetaryloxy group, a hetarylthio group, a diarylamino group, or a dialkylamino group; m, n are each independently an integer from 0-4; X is sulfur, oxygen, or NR3, where R3 is hydrogen, an alkyl group, a cycloalkyl group, an aryl group, or a hetaryl group; Y1 is oxygen or N—Z-A, where A is —COOM, —SO3M, or —PO3M, where M is hydrogen, an alkali metal cation, or [NR?]4+, where each R? is independently hydrogen or an alkyl group, and where Z is C1-C6-alkylene or 1,4-phenylene, where the phenylene radical is optionally substituted by one or more alkyl, nitro, cyano, and halogen substituents.
Type:
Grant
Filed:
March 12, 2014
Date of Patent:
August 30, 2016
Assignees:
BASF SE, Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
Inventors:
Henrike Wonneberger, Neil Gregory Pschirer, Flavio Luiz Benedito, Ingmar Bruder, Robert Send, Yulian Zagranyarski, Chen Li, Klaus Muellen, Long Chen, Artem Nikolaevich Skabeev