Patent ID: 7863605

Claim:
A photoelectric conversion element comprising a photoelectric conversion portion, the photoelectric conversion portion including: a pair of electrodes; and a photoelectric conversion layer between the pair of electrodes, wherein at least part of the photoelectric conversion layer includes a mixed layer of a p-type organic semiconductor and a fullerene, and a mixing ratio of the fullerene to the p-type organic semiconductor in terms of thickness ratio is equal to or less than one-third, and the photoelectric conversion portion further includes a first charge-blocking layer between one of the pair of electrodes and the photoelectric conversion layer and a second charge-blocking layer between the other of the pair of electrodes and the photoelectric conversion layer, the first charge-blocking layer suppressing injection of a charge from the one of the pair of electrodes into the photoelectric conversion layer upon applying a voltage across the pair of electrodes, and the second charge-blocking layer suppressing injection of a charge from the other of the pair of electrodes into the photoelectric conversion layer upon applying a voltage across the pair of electrodes.