| 摘要 |
PURPOSE:To obtain a high conversion efficiency as an organic photovoltaic element by laminating an electron-accepting organic substance layer, an electron-donative organic substance layer and an electron-donative organic substance layer. CONSTITUTION:A part composed of three continuous layers of an electron-accepting organic substance layer, an electron-donative organic substance layer 1 and an electron- donative organic substance layer 3 which is different from it sequentially from the side of a translucent electrode or a part composed of three continuous layers of an electron-donative organic substance layer, an electron-accepting organic substance layer 1 and an electron-accepting organic substance layer 2 which is different from it is included between two electrodes of which at least one is light-transmitting. As a more desirable constitution, a translucent n-type inorganic semiconductor layer is inserted. A photoelectric charge generation site is an interface between the electron- accepting organic substance layer and the electron-donative organic substance layer; it is not especially different from a constitution which has removed the electron- donative organic substance layer 2; a photoelectric current generated by the electron- donative organic substance layer is increased especially. As a result, Jsc is increased. |
