| 摘要 |
PROBLEM TO BE SOLVED: To enhance an energy conversion efficiency by a method wherein, in the elements which are arranged in the order of a fullerence thin film layer, an organic p-type semiconductor and a metal electrode layer whose work function is in a specific range, the second and the fourth layers are continuously vapor deposited in a vacuum atmosphere of 1×10<-5> Torr or less. SOLUTION: This organic solar battery is an element of laminated structure formed by successively laminating a transparent conductive film layer (first layer), a fullerene thin film layer (second layer), an organic p-type semiconductor thin film layer (third layer) and a metal electrode layer (fourth layer) having the work function of 4.5 eV or more. The order of lamination may be reversed with the same arrangement. However, in any case, at least the second layer to the fourth layer, among the first layer to the fourth layer, should be continuously formed by vapor deposition in the vacuum atmosphere of 1×10<-5> Torr. A large photoelectric current can be obtained by an organic solar battery having the above-mentioned structure. |
