1. State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision Instrument Tsinghua University Beijing 100084 China
2. Photophysics & OptoElectronics Zernike Institute for Advanced Materials University of Groningen Nijenborgh 4 Groningen 9747 AG The Netherlands
3. Materials Simulation and Modelling Department of Applied Physics Eindhoven University of Technology Eindhoven 5600 MB The Netherlands
4. Center for Computational Energy Research Department of Applied Physics Eindhoven University of Technology Eindhoven 5600 MB The Netherlands
5. Cavendish Laboratory University of Cambridge JJ Thomson Avenue Cambridge CB30HE UK
6. Computational Materials Science, Faculty of Science and Technology and MESA+ Institute for Nanotechnology University of Twente Enschede 7500AE The Netherlands