| Affiliation: | 1. Department of Physics, Columbia University, New York, NY, USA;2. Department of Chemistry, Columbia University, New York, NY, USA;3. Energy Frontier Research Center (EFRC), Columbia University, New York, NY, USA;4. School of Engineering and Applied Sciences and Department of Physics, Harvard University, Cambridge, MA;5. Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, USA;6. Department of Electrical Engineering, Columbia University, New York, NY, USA;7. Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Japan;8. Department of Mechanical Engineering, Columbia University, New York, NY, USA |
