Method for manufacturing solar cell of solar module, involves forming front-side contacts on dielectric layer on front side of substrate while ensuring partial melting and strengthening of rear side contacts, by applying metallization

摘要

The method involves forming dielectric layers (112,114) on front and back sides of silicon substrate (102) of a solar cell. An aluminum-containing metallization (122) is applied on the dielectric layer (114) to form laser-fired rear contacts on dielectric layer (114) on back side of substrate. A metallization is applied on the front side of the substrate and the subsequent heating of the substrate is performed, so that front-side contacts are formed on dielectric layer (112) on front side of substrate while ensuring partial melting and strengthening of rear side contacts.