PHOTOELECTRIC CONVERSION ELEMENT AND IMAGING DEVICE USING THE SAME

摘要

An organic photoelectric conversion element has a light receiving layer which includes at least a photoelectric conversion layer sandwiched between a hole collecting electrode and an electron collecting electrode, and an electron blocking layer is provided between the hole collecting electrode and the electron collecting electrode. The photoelectric conversion layer is formed of a first photoelectric conversion layer which is a bulk hetero layer of an n-type organic semiconductor and a p-type organic semiconductor, and a second photoelectric conversion layer formed in contact with the surface of the first photoelectric conversion layer on the hole collecting electrode side. The average value of the mixing ratio of the n-type organic semiconductor to the p-type organic semiconductor in the second organic semiconductor layer is higher than the average value in the photoelectric conversion layer formed of the first photoelectric conversion layer and the second photoelectric conversion layer.

主权项

1. An organic photoelectric conversion element, comprising a light receiving layer which includes at least a photoelectric conversion layer sandwiched between a hole collecting electrode and an electron collecting electrode, wherein:
an electron blocking layer is provided between the hole collecting electrode and the electron collecting electrode; the photoelectric conversion layer is formed of a first photoelectric conversion layer which is a bulk hetero layer of an n-type organic semiconductor and a p-type organic semiconductor, and a second photoelectric conversion layer formed in contact with the surface of the first photoelectric conversion layer on the hole collecting electrode side; and the average value of the mixing ratio of the n-type organic semiconductor to the p-type organic semiconductor in the second organic semiconductor layer is higher than the average value in the photoelectric conversion layer formed of the first photoelectric conversion layer and the second photoelectric conversion layer.