1. Australian Centre for Advanced Photovoltaics and the School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Kensington, N.S.W., Australia
2. Research School of Engineering, The Australian National University, Canberra, Australia
3. Fraunhofer Institute for Solar Energy Systems, Freiburg, Germany
4. BT Imaging Pty Ltd., Waterloo, N.S.W., Australia
5. Department of Solar Energy, Leibniz University of Hanover, Hannover, Germany