1. Australian Centre for Advanced Photovoltaics; University of New South Wales; Sydney New South Wales 2052 Australia
2. National Renewable Energy Laboratory; 15013 Denver West Parkway Golden CO 80401 USA
3. Research Center for Photovoltaics (RCPV); National Institute of Advanced Industrial Science and Technology (AIST); Central 2, Umezono 1-1-1 Tsukuba Ibaraki 305-8568 Japan
4. Characterisation and Simulation/CalLab Cells; Fraunhofer Institute for Solar Energy Systems; Heidenhofstr. 2 D-79110 Freiburg Germany
5. European Commission - Joint Research Centre; Renewable Energy Unit, Institute for Energy; Via E. Fermi 2749 IT-21027 Ispra VA Italy