摘要:
A photosensitizer containing guanidine derivative expressed in General Formula (a) as and a photosensitizer expressed in General Formula (X) as D(m+m′)−(A+)m(A′+)m′ or in General Formula (Y) as D(m+m′+n)−(A+)m(A′+)m′(B+)n (where D has a molecular structure capable of absorbing visible light or infrared ray, A and A′ represent the guanidine derivative, and B represents an ion other than the guanidine derivative), and a semiconductor electrode and a photoelectric conversion device employing the photosensitizer are provided. A photosensitizer having a novel structure as well as a semiconductor electrode and a photoelectric conversion device employing the photosensitizer are thus provided.