1. Department of Electrical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
2. NRC Postdoc residing at the U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
3. Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, United States
4. Department of Electrical and Computer Engineering, Princeton University, Princeton, New Jersey 08544, United States
5. Holcombe Department of Electrical and Computer Engineering, Clemson University, Clemson, South Carolina 29634, United States
6. Department of Physics, Ewha Womans University, Seoul 03760, Republic of Korea
7. School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics, Georgia Institute of Technology, Atlanta, Georgia 30303, United States
8. Renewable and Sustainable Energy Institute (RASEI), University of Colorado Boulder, Boulder, Colorado 80309, United States
9. Department of Chemistry and Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
10. Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08544, United States