Patent ID: 8563855
Filing Date: 2013-10-22
Classification: B82Y,H01G,H01L,Y02E,Y02P

Abstract:
1. A photovoltaic element for converting electromagnetic radiation into electrical energy, the photovoltaic element having a tandem cell structure, wherein the tandem cell structure comprises: a dye solar cell having a first electrode, an n-type semiconducting metal oxide, a dye absorbing electromagnetic radiation in a first spectral range and a solid p-type semiconductor; and an organic solar cell having an acceptor material and a donor material, the acceptor material and/or the donor material comprising an organic material, the organic solar cell furthermore comprising a second electrode on an opposite side from the dye solar cell, and the organic solar cell being configured to absorb electromagnetic radiation in a second spectral range, which is at least partially different from the first spectral range, the first electrode and/or the second electrode being at least partially transparent for the electromagnetic radiation, wherein the photovoltaic element comprises at least one charge recombination zone between the dye solar cell and the acceptor material of the organic solar cell.