1. Department of Chemistry, Columbia University, New York, NY 10027 (USA) http://nuckolls.chem.columbia.edu/
2. Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544 (USA)
3. Columbia Energy Frontier Research Center (EFRC), Columbia University, New York, NY 10027 (USA)
4. Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973 (USA)
5. Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025 (USA)