1. King Abdullah University of Science and Technology (KAUST) KAUST Solar Center (KSC) Thuwal 23955–6900 Saudi Arabia
2. Integrated Center for Applied Physics and Photonic Materials Center for Advancing Electronics Dresden (CFAED) Technical University of Dresden Nöthnitzer Straße 61 01187 Dresden Germany
3. Physical Measurement Laboratory National Institute of Standards and Technology (NIST) Gaithersburg MD 20899 USA
4. Theiss Research La Jolla CA 92037 USA
5. Univ Rennes ENSCR INSA Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) UMR 6226 Rennes F‐35000 France
6. Oden Institute for Computational Engineering and Sciences The University of Texas at Austin Austin TX 78712 USA
7. Department of Physics The University of Texas at Austin Austin TX 78712 USA