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Silicon solar cell patents

Laura HorcajadaLaura Horcajada

Method for producing rear surface contact solar cells from crystalline silicon


Described is a method for producing rear surface contact solar cells from crystalline silicon, comprising at least one laser doping step for creating an n-doped or p-doped region (20, 22), and comprising a laser ablation step for exposing contact surfaces (26) on the rear surface of the solar cell (10), which are contacted by a screen printing process.

Publication number: WO2015071217A1 | Search similar patents

Method for producing a solar cell and arrangement for carrying out the method

The invention relates to a method for producing a solar cell on a crystalline semiconductor substrate (201), in particular a crystalline silicon solar cell comprising a surface layer doped differently from the semiconductor substrate and connection regions on both substrate surfaces, wherein a separating cut (211) is generated along the outer edge in one of the two substrate surfaces through the surface layer into the semiconductor substrate by means of a cutting tool guided at a predetermined distance from the edge in order to electrically insulate the two substrate surfaces from each other.

Publication number: WO2012152486A1 | Search similar patents

Method and arrangement for producing a crystalline solar cell

Method for producing a crystalline solar cell, more particularly a silicon solar cell, which is formed in and on a semiconductor substrate with an applied passivation and/or antireflection layer and has a metal-containing contact layer, wherein the contact layer is formed, after removal of the passivation and/or antireflection layer and/or after doping of a surface layer of the semiconductor substrate for the purpose of reducing a contact resistance, by means of spray deposition of pure metal, from a metal film positioned above the semiconductor substrate and melted there.

Publication number: WO2012171927A1 | Search similar patents

Treatment and production of selective emitters of solar cells

The invention relates to a solar cell the electrical properties of which can be enhanced by etching back the entire silicon surface (6) once a locally higher doped region has been produced.

Publication number: WO2011038718A2 | Search similar patents

Plate-shaped silicon manufacturing method, substrate for manufacturing plate-shaped silicon, plate-shaped silicon, solar cell using the plate-shaped silicon, and solar cell module

A plate-shaped silicon (11, 31) having a through hole (13A) and a cut-out portion (31B) without executing processings such as laser machining and machining is provided low cost so as to increase the demand for solar cells. Using the produced plate-shaped silicon (11, 31), a high-designability transparent (see-through) solar cell, a solar cell module, and an emitter wrap through solar cell are provided at low cost. A method for manufacturing a plate-shaped silicon by bringing a substrate into contact with a silicon melt and growing a crystal of plate-shaped silicon on the substrate is characterized by comprising a step of forming a through hole (13A) and/or a cut-out portion (31B) in the plate-shaped silicon (11, 31) while growing a crystal of a plate-shaped silicon on the substrate.

Publication number: WO03072500A1 | Search similar patents

Solar cell module and solar cell arrangement

Solar cell module, particularly based on crystalline silicon, which is in thermal contact with a latent heat store which acts as a heat sink at elevated module temperature.

Publication number: WO2012038129A1 | Search similar patents

Method and device for heat treating the wafer-shaped base material of a solar cell

The invention relates to a device for heat treating the wafer-shaped base material of a solar cell, in particular of a crystalline or polycrystalline silicon solar cell, wherein the device comprises at least one laser light source (4a, 4b).

Publication number: WO2011095560A2 | Search similar patents

Tandem solar cell made of crystalline silicon and crystalline silicon carbide as well as method of manufacturing it

The invention describes photovoltaic tandem solar cells made of crystalline silicon and crystalline silicon carbide having an Si/C intermediate layer. Furthermore, the invention describes a method for the production of tandem solar cells.

Publication number: EP2190033A1 | Search similar patents

Doping media for the local doping of silicon wafers

The invention relates to a novel method for producing printable, high-viscous oxide media and to the use thereof in the production of solar cells.

Publication number: WO2014101989A1 | Search similar patents

Solar cell emitter region fabrication using self-aligned implant and cap

Methods of fabricating solar cell emitter regions using self-aligned implant and cap, and the resulting solar cells, are described. In an example, a method of fabricating an emitter region of a solar cell involves forming a silicon layer above a substrate. The method also involves implanting, through a stencil mask, dopant impurity atoms in the silicon layer to form implanted regions of the silicon layer with adjacent non-implanted regions. The method also involves forming, through the stencil mask, a capping layer on and substantially in alignment with the implanted regions of the silicon layer. The method also involves removing the non-implanted regions of the silicon layer, wherein the capping layer protects the implanted regions of the silicon layer during the removing. The method also involves annealing the implanted regions of the silicon layer to form doped polycrystalline silicon emitter regions.

Publication number: US2015162484A1 | Search similar patents

Method for the wet-chemical production of a passivation layer for a semiconductor device

Disclosed is a method for producing a semiconductor device, in particular a silicon-based solar cell, comprising an at least regionally p-doped semiconductor substrate and a passivation layer on the substrate. The passivation layer includes a layer which contains charge-inducing metal ions and which is produced in a wet chemical process.

Publication number: WO2012171682A2 | Search similar patents

Method for producing a solar cell


The invention relates to a method for producing a solar cell (1) composed of crystalline silicon. The substrate (3) of said solar cell has, in a first surface (3a), a first doping region (5) produced by boron diffusion and, in a second surface (3b), a phosphorus-doped second doping region (7). The invention further relates to a solar cell of said type.

Publication number: WO2014191492A1 | Search similar patents

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