• Handick, E.; Reinhard, P.; Alsmeier, J.-H.; Köhler, L.; Pianezzi, F.; Krause, S.; Gorgoi, M.; Ikenaga, E.; Koch, N.; Wilks, R.G.; Buecheler, S.; Tiwari, A.N.; Bär, M.: Potassium Postdeposition Treatment-Induced Band Gap Widening at Cu(In,Ga)Se2 Surfaces – Reason for Performance Leap? ACS Applied Materials & Interfaces 7 (2015), p. 27414-27420

10.1021/acsami.5b09231