Steffen Ragnow

Serial connection of thin film solar cells

Alexander Dr. Braun, Karsten Otte, Steffen Ragnow, 2009 .

Scribing of Thin-film Solar Cells with Picosecond Laser Pulses

Steffen Ragnow, Gediminas Račiukaitis, Paulius Gečys, 2011 .

The influence of the laser parameter on the electrical shunt resistance of scribed Cu(InGa)Se2 solar cells by nested circular laser scribing technique

Pierre Lorenz, Martin Ehrhardt, Klaus Zimmer, 2014 .