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US 2014/0150849 A1Published application
Photovoltaic cell and method of production thereof
AssigneeDeutsche Cell GmbH
InventorFrederick Bamberg
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AssigneeDeutsche Cell GmbH
InventorFrederick Bamberg
Estimating the term…
The present invention relates to a method of forming a metal layer on the surface of a photovoltaic cell by forming a first layer of a first composition on the surface of a silicon substrate and then forming a second layer of a second composition on the first layer, wherein both layers are in electrical contact with each other, the first composition comprises particles comprising or consisting of (i) B, Al, Ga, In, and/or Tl or (ii) P, As, Sb, and/or Bi, the second composition comprises metal particles, and wherein the particles of the first layer have a mean diameter smaller than the mean diameter of the metal particles of the second composition. Further, the present invention also relates to photovoltaic cells and solar modules obtainable using the method of the present invention.
A method of forming a layer on the surface of a silicon substrate, the method comprising:
Photovoltaic cell comprising a back surface metal layer, the back surface metal layer comprising a first layer and a second layer, the first layer comprising particles comprising or consisting of (i) B, Al, Ga, and/or Tl or (ii) P, As, Sb, and/or Bi, the second layer comprising metal particles, and the first layer being sandwiched between a silicon substrate of the photovoltaic cell and the second layer, wherein the first layer comprises particles with a smaller mean diameter than the metal particles of the second layer.
Dependencies are inferred from the claim text.