| 摘要 |
The invention relates to novel conjugated polymers containing one or more [1,2,5]Thiadiazolo[3,4-e]isoindole-5,7-dione (TID) repeating units, to methods for their preparation and educts or intermediates used therein, to polymer blends, mixtures and formulations containing them, to the use of the polymers, polymer blends, mixtures and formulations as organic semiconductors in, or for the preparation of, organic electronic (OE) devices, especially organic photovoltaic (OPV) devices and organic photodetectors (OPD), and to OE, OPV and OPD devices comprising, or being prepared from, these polymers, polymer blends, mixtures or formulations. |
| 主权项 |
1. A polymer comprising:
one or more units of formula T (TID units) wherein X is S, Se, O or NR, R denotes H or straight-chain, branched or cyclic alkyl with 1 to 30 C atoms, in which one or more CH2 groups are optionally replaced by —O—, —S—, —C(═O)—, —C(═S)—, —C(═O)—O—, —O—C(═O)—, —NR0—, —SiR0R00—, —CF2—, —CHR0═CR00—, —CY1═CY2— or —C≡C— in such a manner that O and/or S atoms are not linked directly to one another, and in which one or more H atoms are optionally replaced by F, Cl, Br, I or CN, or denotes aryl or heteroaryl with 5 to 15 ring atoms, which is mono- or polycyclic and unsubstituted or substituted, preferably by halogen or by one or more of the aforementioned alkyl or cyclic alkyl groups, Y1 and Y2 are independently of each other H, F, Cl or CN, R0 and R00 are independently of each other H or optionally substituted C1-40 carbyl or hydrocarbyl, and preferably denote H or alkyl with 1 to 12 C-atoms,optionally one or more distinct units having electron donor properties (donor units),optionally one or more distinct units having electron acceptor properties (acceptor units),one or more distinct units (spacer units) which are located between each of said TID units, optional donor units and optional acceptor units, thereby preventing that said TID units, optional donor units and optional acceptor units are directly connected to each other in the polymer chain,said optional donor units, optional acceptor units and spacer units being different from the TID units, and being selected from arylene and heteroarylene groups that are optionally substituted,wherein the polymer is a random copolymer formed by co-polymerising at least three different monomers comprising units selected from said TID units, spacer units, optional donor units and optional acceptor units. |
