Patent ID: 8823408

Claim:
An evaluation system for evaluating photoelectric conversion characteristics of an organic material used in an organic solar cell, comprising: a microwave exposing section for exposing a microwave onto the organic material; a microwave passing section for making the microwave exposure from the microwave exposing section pass through the organic material a plurality of times; a light source section including a xenon flashlamp, for exposing a pulsed white light having a pulse width within a range from 10 μs to 1 ms onto the organic material; a microwave detecting section for detecting an intensity of the microwave which has passed through the organic material; and an evaluating section for evaluating the photoelectric conversion characteristics of the organic material based on the intensity of the microwave which has passed through the organic material when the pulsed white light is exposed and the intensity of the microwave which has passed through the organic material when the pulsed white light is not exposed, wherein the evaluating section makes an evaluation such that a slower temporal change in a difference between the intensity of the microwave which has passed through the organic material when the pulsed white light is exposed and the intensity of the microwave which has passed through the organic material when the pulsed white light is not exposed indicates better photoelectric conversion characteristics of the organic material.