Abstract: The invention relates to an ink composition suitable for applications onto solar cells. Specifically, the invention describes several compositions, using nickel/silicon alloys which have been found to be particularly effective contact metallization of emitter layers. The ratio of nickel to silicon in claimed invention is in the range of 0.1:1 to 1:0.1.

Abstract: The invention relates to an ink composition suitable for applications onto solar cells. Specifically, the invention describes several compositions, using nickel/silicon alloys which have been found to be particularly effective contact metallisation of emitter layers. The ratio of nickel to silicon in claimed invention is in the range of 0.1:1 to 1:0.1.

Abstract: A composition for forming a seed layer, the composition comprising: (a.) a first metal fine particle; and (b.) a metallic component selected from a metal oxide fine particle, an organic metal complex, a second metal fine particle, and combinations thereof, wherein the second metal fine particle has a greater affinity for oxygen than the first fine particle. A seed layer as defined, and a coating including a seed layer and the use of this coating. Further, the invention relates to a method of forming a seed layer comprising applying a composition comprising a first metal fine particle, and a metallic component selected from a metal oxide fine particle, an organic metal complex, a second fine metal particle, and combinations thereof, wherein the second metal fine particle has a greater affinity for oxygen than the first metal fine particle to a surface of a substrate, and setting the composition.

Abstract: Method for printing high resolution features on a substrate, the method comprising: depositing a nanoparticle ink, comprising metal/semi-metal nanoparticles and an adhesive compound, having a binder on a substrate; and applying a laser beam, directly on some or all of the deposited nanoparticle ink to define the print feature, wherein the laser beam is configured to remove the nanoparticle coating or binder thereby allowing the adhesive compound to bond to the nanoparticles and the laser beam is further configured to transform the ink to form a metal/semi-metal structure. The remaining uncured structure can be easily washed away using standard developer solutions such as sodium or potassium hydroxide.

Abstract: Apparatus for curing of nanoparticle material, the apparatus comprising: a receptacle for receiving a substrate upon which a laser of the nanoparticle ink has been placed; and a laser bar diode array comprising a first bar diode laser, the array configured to emit a laser as a continuous wave and to cure the deposited nanoparticle material.