NOVELTY - The method involves determining a pulse energy density range of laser beam from measure values. A layer resistivity in lasered area is reduced between 0 and 30 percentage compared to a layer resistivity outside the area. A specific contact resistance between the area and applied electrically conductive material for forming an electrical conductive contact is between 0 and 10 mega ohm square centimeter. The laser radiation having a pulse energy density within the determined pulse energy density range is applied to remaining solar cells from a group in areas of solar cells to be contacted.    USE - Method for producing contacts made of electrically conductive material on a group of solar cells (claimed).    ADVANTAGE - The method avoids occurrence of increased dopant concentration, thus reproducibly producing a better electrically conductive connection between the contacts and the solar cells in a region of electrically conductive contacts. The method minimizes a contact transition resistance in the connecting region. The method reduces recombination negatively influencing an efficiency of the solar cell, and enables loss-less current collection. The method reproducibly manufactures the solar cells in a series production without influencing internal quantum yield, and obtains optimal conditions in a region of electrically conductive regions.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a solar cell comprising a substrate. A medium selected from a group of aqueous solution, alcoholic solution, and solid with phosphor is used as a dopant. The solar cell is applied with the laser beam after forming phosphorsilicate glass. A temperature treatment step is performed for producing silicon phosphide. Phosphor silicate glass is formed. A substrate is made hydrophilic before application of doping source in an aqueous solution containing sodium hydroxide, potassium hydroxide, hydrogen peroxide, ozone or hydrogen chloride. The substrate is made of crystalline silicon.    DESCRIPTION OF DRAWING(S) - The drawing shows a graphical representation of a specific contact resistance and a layer resistance as a function of pulse energy density.'(Drawing includes non-English language text)'