1. Department of Chemistry, University of California, Berkeley, California 94720, United States
2. Nano-Bio Spectroscopy Group and ETSF, Universidad del País Vasco UPV/EHU, Avenida de Tolosa 72, E-20018 Donostia, Spain
3. Max Planck Institute for the Structure and Dynamics of Matter, Bldg. 99, Luruper Chaussee 149, 22761 Hamburg, Germany
4. Department of Physics, University of California, Berkeley, California 94720, United States
5. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
6. Center for Computational Quantum Physics (CCQ), The Flatiron Institute, 162 Fifth Avenue, New York, New York 10010, United States
7. Kavli Energy NanoSciences Institute at the University of California Berkeley and the Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States