| abstract |
The present invention is a composition for printing a conductor track on a substrate, particularly a solar cell substrate, by a laser printing method, the composition comprising 30 to 90% by mass of conductive particles, 0 to 7% by mass. Glass frit, 0-8% by weight of at least one matrix material, 0-8% by weight of at least one organometallic compound, 0-5% by weight of at least one additive and 3-69% by weight. % Of the solvent. This composition further contains 0.5 to 15% by mass of nanoparticles as a laser light absorber, and the nanoparticles are composed of silver, gold, platinum, palladium, tungsten, nickel, tin, bismuth, iron, indium. Tin oxide, titanium carbide, tungsten oxide or titanium nitride particles. This composition contains 1 mass% or less of elemental carbon. [Selection figure] None |