Abstract:
An organic photoelectric conversion element comprises: a pair of electrodes; an organic photoelectric conversion layer arranged between the pair of electrodes; and an positive hole blocking layer arranged between one of the pair of electrodes and the organic photoelectric conversion layer, wherein an ionization potential of the positive hole blocking layer is larger than a work function of the adjoining electrode by 1.3 eV or more, and wherein an electron affinity of the positive hole blocking layer is equal to or larger than that of the adjoining organic photoelectric conversion layer. An electron blocking layer may be arranged between the other one of the pair of electrodes and the organic photoelectric conversion layer, wherein its electron affinity is smaller than a work function of the adjoining electrode by 1.3 eV or more, and its ionization potential is equal to or smaller than that of the adjoining organic photoelectric conversion layer.
Abstract:
A photoelectric conversion element comprises a photoelectric conversion section that includes: a pair of electrodes; and a photoelectric conversion layer disposed between the pair of electrodes, wherein the photoelectric conversion section further comprises between one of the pair of electrodes and the photoelectric conversion layer a first charge-blocking layer that restrains injection of charges from the one of the electrodes into the photoelectric conversion layer when a voltage is applied to the pair of electrodes, and the first charge-blocking layer comprises a plurality of layers.