AMINE-CONTAINING DIFLUORO BENZOTRIAZOLYL POLYMER, PREPARATION METHOD AND USE THEREOF
申请人:Zhou Mingjie
公开号:US20140128558A1
公开(公告)日:2014-05-08
The present disclosure relates to the field of solar cells. An amine-containing difluoro benzotriazolyl polymer, preparation method, and use thereof are provided; the polymer has a structure as represented by formula (I),
both R
1
and R
2
are alkyls from C
1
to C
20
, 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.