Amine-containing difluoro benzotriazolyl polymer, preparation method and use thereof

Abstract

An amine-containing difluoro benzotriazolyl polymer, preparation method, and use thereof are provided; the polymer has a structure as represented by formula (I), both R1 and R2 are alkyls from C1 to C20, n is an integer from 10 to 50. In the polymer of the present disclosure, because the 1,2,3-benzotriazole solar cell material contains two fluorine atoms, the HOMO energy level is reduced by 0.11 eV, the fluorine-substituted 1,2,3-benzotriazole has two imido groups with strong electron-withdrawing property; the 1,2,3-benzotriazole is a heterocyclic compound with strong electron-withdrawing property, and an alkyl chain can be easily introduced to the N-position of the N—H bond of the benzotriazole; the functional group of the alkyl chain can improve solar energy conversion efficiency, thus solving the low efficiency problem of the solar cell made from the solar cell material.

Dependencies are inferred from the claim text.