Polymers based on bi-halogen atoms-substituted heterocyclic compounds an organic solar cell comprising the same and manufacturing method of the polymers and the solar cell

摘要

The present application relates to an electron donor polymer having a wide bandgap capable of having excellent properties, a solar cell including the polymer, and a method for manufacturing the same, and relates to regioregularity, planarity, and oxidation stability. Electron donor derivatives with excellent stability and charge carrier mobility are selected as D 1 , and their electronegativity is as strong as that of fluorine (F, Fluorine) among halogen elements. Electron acceptor derivatives that improved dipole moment and frontier energy levels by double introduction of easy chlorine (Cl, Chlorine) or bromine (Br, Bromine) were selected as A 1and D 1 - A 1 , (D 1 -A 1 )-(D 2 -A 1 ) or (D 1 -A 1 )-(D 1 -A 2 ) A polymer having a main chain in a push-pull form, comprising the polymer An object of the present invention is to provide a solar cell and a method for manufacturing the same.