[1] Helmholtz Zentrum Berlin Mat & Energie, D-14109 Berlin, Germany
[2] Free Univ Berlin, Dept Geosci, D-12249 Berlin, Germany
[3] Zentrum Sonnenenergie & Wasserstoff Forsch, D-70565 Stuttgart, Germany
[4] Swiss Fed Inst Technol, Lab Ion Beam Phys, CH-8093 Zurich, Switzerland
[5] Thermo Fisher Sci, D-63303 Dreieich, Germany
[6] Thermo Fisher Sci, D-28199 Bremen, Germany
[7] Thermo Fisher Sci, E Grinstead RH19 1UB, W Sussex, England
[8] Thermo Fisher Sci, NL-4817 Breda, Netherlands
[9] IFW Dresden, D-01069 Dresden, Germany
[10] Univ Bundeswehr Munchen, D-85577 Neubiberg, Germany
[11] Federal Inst Mat Res & Testing, D-12205 Berlin, Germany
[12] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA
[13] Catalonia Inst Energy Res IREC, St Adria Del Besos 08930, Barcelona, Spain
[14] Univ Barcelona, Dept Elect, IN2UB, E-08028 Barcelona, Spain
[15] Ctr Rec & Invest Catalunya CRIC, Barcelona 08012, Spain
[16] Swiss Fed Inst Technol, Dept Chem & Appl Biosci, CH-8093 Zurich, Switzerland
[17] Max Planck Inst Iron Res, D-40237 Dusseldorf, Germany
[18] Univ Magdeburg, Inst Expt Phys, D-39106 Magdeburg, Germany
[19] Univ Toledo, Ctr Photovolta Innovat & Commercializat PVIC, Toledo, OH 43606 USA
[20] Ctr Therm Photovolta AG, Technol Thin Film, D-89143 Blaubeuren, Germany