| abstract |
The present invention relates to an organic solar cell comprising, in order, a first electrode, an active layer comprising a plurality of organic layers, and a second electrode, wherein the active layer is any one of the following (A) and (B) (A) a p-type semiconductor layer, an i-layer as a mixed layer of a p-type semiconductor material and an n-type semiconductor material, a hole barrier layer having a thickness that prevents migration of holes and does not hinder migration of electrons, n-type An active layer in which a semiconductor layer is sequentially laminated; (B) a p-type semiconductor layer, an n-type semiconductor layer (I), a hole barrier layer that prevents migration of a hole and does not hinder migration of electrons, and an n-type semiconductor The layer (II) is an active layer laminated in sequence. |