Characterisation of local aluminum-alloyed contacts

We analyze in this work the recombination at local aluminum alloyed contacts, which are realized by local laser ablation of a dielectric stack and subsequent full area screen printing of aluminum paste. The contact formation occuring during a final rapid thermal anneal is quantitatively described for the first time. We focus in this work to analyze the processing parameters of local aluminum alloyed contacts to enable lowest contact recombination in solar cells.

studied physics in Göttingen, Germany. He recieved his Physics Diploma Degree in 2008 on the determination of the fuel-air ratio in internal combustion engines using light induced fluorescence. In 2013 he finished his doctoral studies on the analysis of local alloying of Aluminum and Silicon with application to solar cells.