Abstract

The invention relates to a photovoltaic device (10) for the direct conversion of radiation energy into electric energy, having at least one solar cell (20), having at least one first optical element (40) for focusing the incident radiation, and having at least one second optical element (70, 75) for deflecting the focused radiation in the direction of the solar cell (20), wherein at least one holding device (80) is provided, which positions the second optical element (70, 75) relative to the first optical element (40) and relative to the solar cell (20), wherein the solar cell (20) is hermetically sealed in a hollow space (90), and wherein the hollow space (90) is delimited at least by the holding device (80) and the second optical element (70, 75). The invention further relates to a solar system having a plurality of such photovoltaic devices (10), and to a method for the production of the photovoltaic device (10).

IPC Classes  ?

• H01L 31/052 - Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells

Abstract

The invention relates to a photovoltaic device comprising at least one first optical element for bundling the incident solar radiation onto at least one small-area solar cell. The first optical element comprises a holographic structure that deflects the incident solar radiation that cannot be converted to power by the solar cell, to at least one light conversion layer and lets other solar radiation through. The light conversion layer shifts the solar radiation deflected thereto to shorter wavelengths. An optical structure is present on the light conversion layer and deflects the solar radiation that is shifted by the light conversion layer to shorter wavelengths and that can be converted by the solar cell to electrical energy to the solar cell and lets other solar radiation through.

IPC Classes  ?

• H01L 31/052 - Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
• H01L 31/055 - Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means where light is absorbed and re-emitted at a different wavelength by the optical element directly associated or integrated with the PV cell, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements

Abstract

The invention relates to a photovoltaic device for the direct conversion of solar energy to electrical energy. Said device comprises at least one solar cell (20) and at least one optical elment (30), associated with the at least one solar cell (20), for deflecting the perpendicularly incident solar radiation (35) to the associated solar cell (20) arranged at a distance thereto, the projection of the surface of the optical element (30) on to the plane comprising the solar cell (20) adjoining the surface of the latter. The optical element (30) has a thickness of less than a few hundreds of micrometers especially less than 100 micrometers. The invention also relates to a corresponding method of production.

IPC Classes  ?

• H01L 31/052 - Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells

Abstract

The invention relates to a photovoltaic device for directly converting solar energy into electric energy, comprising at least one solar cell and at least one first optical element that is associated with the solar cell, said element deflecting the incident solar rays, in a first spectral range that can be converted into electric energy by the solar cell, to the solar cell that is mounted on a lateral surface of the first optical element and the incident solar rays, in a second spectral range that can not be converted into electric energy by the solar cell, deflects away from the surface of the solar cell to a target area that is devoid of solar cells.

IPC Classes  ?

• H01L 31/052 - Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
• F24J 2/06 - having concentrating elements (optical elements or systems per seG02B)
• G02B 5/32 - Holograms used as optical elements

Abstract

The invention relates to photovoltaics for converting solar energy into electric energy, comprising at least one solar cell (25) fastened to a carrier plate (20), and at least one RFID tag (55) for storing identifying data of the photovoltaic device (10), wherein the RFID tag is an RFID tag (55) that is electrically insulated from the at least one solar cell (25). The invention further relates to a method for the production thereof.

IPC Classes  ?

• H01L 31/048 - Encapsulation of modules
• H01L 31/052 - Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
• H01L 31/042 - PV modules or arrays of single PV cells
• G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier

Abstract

The invention relates to a photovoltaic device (10) for directly converting solar energy into electrical energy, comprising a light entrance body (1) having a multiplicity of holographic elements (3) which each have a hologram structure (30) with a plurality of superimposed hologram layers (32, 34) having different spectral sensitivities, which concentrate the short-wave solar radiation that is incident at a specific angle in each case onto the same region of an opposite solar cell (5) having an area smaller than the light entrance area of a corresponding holographic element (3), wherein each holographic element (3) has at least one topmost hologram layer (32) which transmits the short-wave incident radiation and deflects the incident long-wave solar radiation at an obtuse angle or directs it away from the opposite solar cell (5) in a region present between the opposite solar cell (5) and an adjacent solar cell (5) on that side of the solar cells (5) which is remote from the light.

IPC Classes  ?

• H01L 31/052 - Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
• G02B 5/32 - Holograms used as optical elements