Photovoltaic module and method for manufacturing the same

An interdigitated back contact photovoltaic device comprising:

• a silicon-based substrate being of a p-type or n-type doping and having a first face defining a horizontal X-Y plane and a vertical direction Z orthogonal to said horizontal X-Y plane;
• a patterned silicon layer comprising a plurality of first-type structures, being p-type or n-type doped structures, and a plurality of second-type structures, being of the type opposite to said first-type, said first-type structures and second-type structures being of an alternating polarity type,
• wherein
• said silicon-based substrate, comprising said patterned silicon layer, is divided in a first portion and a second portion, the intersection of the two portions defining a virtual separation axis comprising a device center,
• said first portion comprises, arranged on said first-type structures and second type structures, a plurality of electrical contacts aligned as a first series of parallel first columns defining alternating positive and negative polarities, said first columns being orthogonal to said virtual axis,
• said first portion comprises, to a side of the first portion away from said virtual axis, at least one corner that is not a rectangular corner,
• said second portion comprises, arranged on said second-type structures and said first-type structures, a plurality of electrical contacts aligned as a second series of parallel second columns defining alternating negative and positive polarities, said second columns being orthogonal to said virtual axis,
• said second portion being identical to said first portion when virtually rotated, in said X-Y plane, by 180 degrees relative to said device center as virtual rotation center,
• each of the electrical contacts of said first columns have, in the length orthogonal to said virtual axis, a polarity opposite to the polarity of the electrical contacts of a collinear second column,
• said second portion comprises, to a side of the second portion away from said virtual axis, at least one corner that is not a rectangular corner.