Unsymmetrical benzothtadiazole-based random copolymers

    公开(公告)号:US11639421B2

    公开(公告)日:2023-05-02

    申请号:US17238578

    申请日:2021-04-23

    Abstract: A random copolymer comprising the monomer units A and B. In this random copolymer A comprises and B comprises Additionally, R1 R2, R3 and R4 are side chains independently selected from the group consisting of: H, Cl, F, CN, alkyl, alkoxy, alkylthio, ester, ketone and aryl groups. X1 and X2 are different and at least one is a Cl and the other is selected from the group consisting of: H, F, CN, alkyl, alkoxy, ester, ketone, amide and aryl groups.

    Unsymmetrical benzothiadiazole-based molecular complexes in organic photovoltaic devices

    公开(公告)号:US10361370B2

    公开(公告)日:2019-07-23

    申请号:US15644253

    申请日:2017-07-07

    Abstract: An organic photovoltaic device comprising an electron transport layer disposed between an anode and a polymer layer. In this organic photovoltaic device the polymer layer can also be disposed between the electron transport layer and a cathode. The electron transport layer comprises (AOx)yBO(1-y) with an optional fullerene dopant. The polymer comprises a molecular complex comprising wherein X1 and X2 are independently selected from the group consisting of: H, Cl, F, CN, alkyl, alkoxy, ester, ketone, amide and aryl groups; R1, R2, R1′ and R2′ are side chains independently selected from the group consisting of: H, Cl, F, CN, alkyl, alkoxy, alkylthio, ester, ketone and aryl groups; R3 are selected from the group consisting of alkyl group, alkoxy group, aryl groups and combinations thereof; G is an aryl group; and wherein the thiophene groups are unsymmetrical.

    REPEAT UNITS FOR PHOTOVOLTAIC APPLICATIONS

    公开(公告)号:US20220363813A1

    公开(公告)日:2022-11-17

    申请号:US17726775

    申请日:2022-04-22

    Abstract: A repeat unit comprising In the repeat unit, X1 and X2 are independently selected from the group consisting of: F, Cl, H, and combinations thereof. Additionally, in this monomer, R′ and R″ are independently selected from an alkyl group, an aryl group, or combinations thereof. Also, R3, and R4 are independently selected from unsubstituted or substituted branched alkyls with 1 to 60 carbon atoms and unsubstituted or substituted linear alkyls with 1 to 60 carbon atoms.

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