Patent WO-2022189931-A1 (WO)
Title: Conjugated anthradithiophene terpolymers and photovoltaic devices containing them
Inventor: BIANCHI GABRIELE
IPC: C09D165/00
Filed: 2022-03-07
Abstract: Conjugated anthradithiophene terpolymer having general formula (I): wherein: - Q, equal or different from each other, represent a nitrogen atom; or they are selected from C-R 1  groups wherein R 1  represents a hydrogen atom, or is selected from C 1 -C 20  alkyl groups, preferably C 2 -C 10 , linear or branched, optionally substituted cycloalkyl groups, optionally substituted aryl groups, optionally substituted heteroaryl groups; W, equal or different from each other, represent a hydrogen atom; or they are selected from C 1 -C 20  alkyl groups, preferably C 2 -C 10 , linear or branched; W 1 , equal or different from each other, represent a hydrogen atom; or they are selected from C 1 -C 20  alkyl groups, preferably C 2 -C 10 , linear or branched; X, equal or different from each other, represent a sulfur atom, an oxygen atom, a selenium atom; Y, equal or different from each other, represent an oxygen atom, a sulfur atom; Z, equal or different from each other, are selected from amino groups -N-R 2 R 3  wherein R 2  represents a hydrogen atom, or is selected from C 1 -C 20  alkyl groups, preferably C 2 -C 10 , linear or branched, or is selected from optionally substituted cycloalkyl groups and R3 is selected from C 1 -C 20  alkyl groups, preferably C 2 -C 10 , linear or branched, or is selected from optionally substituted cycloalkyl groups; or they are selected from -O-R 4  groups wherein R 4  is selected from C 1 -C 30  alkyl groups, preferably C 2 -C 24 , linear or branched, optionally substituted cycloalkyl groups, optionally substituted aryl groups, optionally substituted heteroaryl groups; or they are selected from R 5 -O-[CH 2 -CH 2 -O] n1 - polyethyleneoxy groups wherein R 5  is selected from C 1 -C 20  alkyl groups, preferably C 2 -C 10 , linear or branched, and n1 is an integer ranging from 1 to 4; or they are selected from -R 6 -OR 7  groups wherein Re is selected from C 1 -C 20  alkylene groups, preferably C 2 - C 10 , linear or branched and R 7  represents a hydrogen atom or is selected from C 1 -C 20  alkyl groups, preferably C 2 -C 10 , linear or branched; or they are selected from R 5 -[-OCH 2 -CH 2 -] n1 - polyethyleneoxy groups wherein R 5  has the same meanings reported above and n1 is an integer ranging from 1 to 4; or they are selected from R-S- thiol groups wherein R is selected from C 1 - C 20 , preferably C 2 -C 10 , linear or branched alkyl groups; A represents an electron-acceptor group; an electron-donor group; or is selected from optionally substituted aryl groups, optionally substituted heteroaryl groups; 1 and m, equal or different from each other, represent an integer ranging from 1 to 9, preferably 1 is 1 or 2 and m is 8 or 9; n is an integer ranging from 10 to 500, preferably ranging from 20 to 300. Said conjugated anthradithiophene terpolymer can be advantageously used in the construction of photovoltaic devices (or solar devices) such as, for example, photovoltaic cells (or solar cells), photovoltaic modules (or solar modules), either on a rigid support or on a flexible support.