| abstract |
The present invention relates to a polymer solar cell and a method for preparing the same. The cell comprises a conductive anode substrate, a hole buffer layer, an active polymer layer, an electron buffer layer and a cathode laminated in succession, wherein the hole buffer layer comprises a metal compound host and a guest doped in the metal compound host, the metal compound host being one selected from ZnO, ZnS and CdS and the doped gust being one selected from Li2CO3, Li 2 O, LiF, LiCl and LiBr. By doping a lithium compound with few electrons as a dopant into the metal compound host, a p-type doped layer facilitating the hole transportation is formed in the polymer solar cell. The dopant and the metal compound host have stable properties and would not corrode the conductive anode substrate, facilitating industrial production in the future and effectively improving the energy conversion efficiency of the polymer solar cell. |