1. Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
2. Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
3. Institute for Terahertz Science and Technology, University of California, Santa Barbara, Santa Barbara, California 93106, United States
4. Department of Physics, University of California, Santa Barbara, Santa Barbara, California 93106, United States
5. The Institute for Sustainability and Energy at Northwestern, Northwestern University, Evanston, Illinois 60208, United States
6. Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
7. Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
8. Department of Physics, University of Chicago, Chicago, Illinois 60637, United States
9. Center for Molecular Engineering and Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States