| abstract |
The invention discloses a regioregular terpolymer based on a monofluorine-substituted benzoheterocycle and its application. In the copolymer, the main chain contains two different electron-donating units, and the two kinds of electron-donating units have different functions, respectively having solubility side groups and side groups that do not provide solubility; the electron-deficient units in the copolymer adopt Containing monofluorine-substituted benzoheterocyclic structure, the fluorine atom has strong electron-absorbing properties, which can effectively promote the charge transfer in the polymer molecule; at the same time, the fluorine atom forms a non-bonding interaction with the electron-donating unit to ensure the Carriers are transported in a planar, rigid backbone structure. The regioregular terpolymer based on the monofluorine-substituted benzoheterocycle of the present invention has great application prospects in the field of preparing organic solar cells and organic field effect transistors. |