| 摘要 |
PURPOSE:To obtain an organic photovoltaic element wherein electrode material excellent in stability is used and high conversion efficiency is realized. CONSTITUTION:The title photovoltaic element contains a part composed of four continuous layers between two electrodes at least one of which is optically transparent. The above four layers are an electron acceptor organic material layer (I), and electron acceptor organic material layer (II) different from the layer (I), an electron donor organic material layer (I), and an electron donor organic material layer (II) different from the layer (I). |
