Printable medium that contains metal particles and effects etching, more particularly for making contact with silicon during the production of a solar cell

摘要: A printable medium is proposed, such as can be used, for example, during the production of metal contacts silicon solar cells which are covered with a passivation layer on surface substrate. corresponding method and correspondingly produced cell also disclosed. The contains at least one that etches particles nickel particles, example. By locally applying to subsequent heating, opened aid etching medium. As result, form mechanical electrical contact substrate surface, preferably formation silicide layer. made possible therewith cost-effective owing use allow both good avoidance undesirable high-temperature steps.