22.0% Efficient Laser Doped back Contact Solar Cells

Morris Dahlinger, Barbara Bazer-Bachi, Tobias C. Röder, Jürgen R. Köhler, Renate Zapf-Gottwick, Jürgen H. Werner
2013 Energy Procedia  
We present the first laser doped interdigitated back contacted solar cells with 22.0%. The cell area is 2 x 2 cm 2 , and contains the metallization of both busbars. The high flexibility and spatial resolution of our laser doping process enables local n-type and p-type doping with a precision below 30 μm and avoids any masking process.
doi:10.1016/j.egypro.2013.07.274 fatcat:xw2lvvngpzbvxfvusu2ylkyj7m