Wednesday, 27th May

IMPORTANT: All indicated times are CEST time. Please check your local time here.

Wednesday, 27th May
08:30 - 10:30 | Session 07 | Passivation, Interfaces and Contacts | Chairs: S. Collin, Y. Romanyuk
08:30 | INVITED: Investigation of carrier recombination processes in alkaline treated CIGS solar cells | Takeaki Sakurai (University of Tsukuba, Japan)
09:00 | Role of internal interfaces in high efficiency Cu(In,Ga)Se2 solar cells | Oana Cojocaru-Miredin
09:15 | Electronic Structure of Mo/Absorber Interface in High Performance Cu(In,Ga)(S,Se)2-based Cells | Norio Terada (Kagoshima University & AIST, Japan)
09:30 - 09:45 | Break
09:45 | Sputtered transparent front contact for flexible CIGS cells on steel foil, integrating Cd-free buffer layer  | Theodoros Dimopoulos (AIT - Austrian Institute of Technology, Austria)
10:00 | Device analysis comparing the RbF-PDT impact on CIGS cells with CdS and ZnOS buffer layer | Ana Kanevce (Zentrum fur Sonnenenergie- und WasserstoffForschung, Germany)
10:15 | TEM study of thermal annealing effects on chemical and structural properties of Zn(O,S) buffer layers in CIGS solar cells | Xiaowei Jin (Karlsruhe Institute of Technology, Germany)
10:30 - 10:45 | Break

10:45 - 12:00 | Poster Sessions
PS01: Kesterite & Sb-based materials
PS02: Tandem & interfaces
PS02: Growth & Characterization

13:30 - 14:30 | Session 08 | Alternative Chacopyrite Absorbers and Concepts | Chairs: C. Kaufmann, T. Friedmeier
13:30 | INVITED: Cu(In,Ga)Se2 thin-film micro-concentrator solar cells | Sascha Sadewasser (International Iberian Nanotechnology Laboratory, Portugal)
14:00 | High efficiency solar cells based on co-evaporated Cu(In,Ga)S2 thin films | Nicolas Barreau (Institut des Materiaux Jean Rouxel, France)
14:15 | Investigation of AgGaSe2 as a wide band gap solar cell absorber | Jes Larsen (Uppsala University, Sweden)
14:30 - 14:45 | Break
14:45 - 16:30 | Session 09 | CIGS Absorbers | N. Barreau, D. Abou-Ras
14:45 | INVITED: Effects of Ag and KF-PDT on Low Bandgap CuInSe2 Solar Cells | Nicholas Valdes (University of Delaware, USA)
15:15 | Investigation of back grading influence on voltage loss in low-temperature co-evaporated Cu(In,Ga)Se2 thin films | Shih-Chi Yang (Empa, Switzerland)
15:30 - 15:45 | Break
15:45 | Formation, reduction, and prevention of Ga gradients in Cu(In,Ga)Se2 solar cell absorber layers | Roland Mainz (Helmholtz-Zentrum Berlin/PVcomB, Germany)
16:00 | Effects of KF Post-deposition treatments on Cu(In,Ga)Se2 Single Crystals | Omar Ramirez (University of Luxembourg, Luxembourg)
16:15 | Chemical and electronic properties of buffer/Cu(In,Ga)Se2 interfaces with varying Ga/(Ga+In) absorber ratios  | Mary Blankenship (University of Nevada, Las Vegas USA)