1. School of Chemistry and Biochemistry, Georgia Tech Polymer Network, Center for Organic Photonics and Electronics, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332, United States
2. School of Material Science and Engineering, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332, United States
3. School of Physics, Georgia Institute of Technology, Center for Organic Photonics and Electronics, 837 State Street NW, Atlanta, Georgia 30332, United States