Patent ID: 6846984

Claim:
A method for producing a solar cell with a semiconducting doped substrate ( 1 ), said substrate having a first surface ( 2 ), a second surface ( 3 ) opposite said first surface ( 1 ), and an edge face ( 4 ), said method comprising: forming an emitter layer ( 5 ) on at least portions of the first surface ( 2 ), the edge face ( 4 ), and an edge region ( 9 ) of the second surface ( 3 ); introducing a plurality of longitudinal recesses ( 7 ) in the first surface ( 2 ), said recesses extending between portions of the edge face ( 4 ); producing a doped layer ( 8 ), complementary to the substrate ( 1 ) in at least said recesses ( 7 ); applying a metal layer ( 12 ) on electrically conductive regions of the first and second surfaces ( 2 , 3 ) and of the edge face ( 4 ), and thereby filling said recesses ( 7 ); and forming a first electrode ( 14 ) which is electrically connected to the first surface ( 2 ) by means of the edge region ( 9 ), and forming a second electrode ( 15 ) on the second surface ( 3 ) in a region ( 18 ) located adjacent said edge region ( 9 ), the electrodes ( 14 , 15 ) electrically separated from one another on the second surface ( 3 ).