1. Materials Science and Engineering Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
2. Université de Bordeaux, CNRS Bordeaux INP/ENSCBP, Laboratoire de Chimie de Polymères Organiques UMR 5629, Allée Geoffroy Saint-Hilaire, 33615 Pessac Cedex, France
3. School of Materials Science & Engineering and School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 901 Atlantic Dr, Atlanta, Georgia 30318, United States
4. Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
5. pi-Conjugated Polymers Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tanacha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
6. National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States