Patent ID: 8450140

Claim:
A method for large-scale industrial manufacturing of photovoltaic cells for a photovoltaic converter panel of at least 2500 cm 2 surface extent, comprising depositing a first layer substantially of first type doped semiconductor material by means of a vacuum deposition process, depositing a third layer substantially of second type doped semiconductor material by means of a vacuum deposition process and, in between said first layer and said third layer as second layer, depositing by means of a vacuum deposition process in an atmosphere containing at least one reactive gas a neutrally or undoped microcrystalline layer substantially of silicon compound wherein at least one of depositing of said first and of depositing of said third layer comprises depositing of an amorphous layer of respectively doped semiconductor material, the method further comprising depositing by means of a vacuum deposition process a fourth layer substantially of first type doped semiconductor material, depositing by means of a vacuum deposition process a sixth layer substantially of second type doped semiconductor material and, in between said fourth layer and said sixth layer, as a fifth layer, depositing by means of a vacuum deposition process a neutrally doped or undoped semiconductor layer, wherein said depositing of said first layer comprises said depositing of an amorphous layer of first type doped semiconductor material and depositing of said sixth layer comprises continuing depositing of said first layer by the respective vacuum deposition process while changing said first type doping to said second type doping.