U. Klemm

Sodium co-evaporation for low temperature Cu(In,Ga)Se2 deposition

M. Powalla, M. Lammer, U. Klemm, 2001 .

Flexible, Monolithically Integrated Cu(In,Ga)Se 2 Thin-Film Solar Modules

Wolfram Witte, M. Powalla, F. Kessler, 2005 .