1. Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
2. Smalley-Curl Institute, Rice University, 6100 Main Street, Houston, Texas 77005, United States
3. Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States
4. Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
5. Department of Physics & Astronomy, Rice University, 6100 Main Street, Houston, Texas 77005, United States
6. Department of Chemistry, Emory University, 1515 Dickey Drive, NE, Atlanta, Georgia 30322, United States
7. Applied Physics Program, Rice University, 6100 Main Street, Houston, Texas 77005, United States
8. Advanced Materials & Systems Research, Polymer Colloid Technology, BASF SE, 67056 Ludwigshafen am Rhein, Germany
9. Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States