1. Australian Centre for Advanced Photovoltaics,
School of Photovoltaic and Renewable Energy Engineering, UNSW Australia, Sydney 2052, Australia
2. Centre for Micro-Photonics, Swinburne University of Technology, Melbourne 3122, Australia
3. Max Planck
Institute for the Science of Light, Günther-Scharowsky-Str. 1/Bau 24, 91058 Erlangen, Germany
4. Institute of Optics, Information and Photonics, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Staudtstr. 7/B2, 91058 Erlangen, Germany
5. Institute of Nanoarchitectures for Energy Conversion, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz
1, 14109 Berlin, Germany
6. Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany