[Problem] To provide a new
photoelectric conversion element in which scattering of carriers caused by light incident on a
photoelectric conversion part is reduced, even at a high temperature equal to or higher than
room temperature, and a current generated by movement of the carriers can be efficiently extracted from the
photoelectric conversion part. [Solution] This photoelectric conversion element comprises: a photoelectric conversion part made of an organic
nonlinear optical material and having no p-n junction; and first and second electrodes provided to the photoelectric conversion part and arranged with a space therebetween. The photoelectric conversion part is polarized in a direction aligned with the first and second electrodes and has a structure in which space inversion symmetry is broken.