1. Department of Materials Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
2. Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
3. Department of Chemistry, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
4. Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
5. Department of Chemical Sciences, University of Padova, Via Marzolo, 1, Padova 35131, Italy
6. Department of Physics, Duke University, Durham, North Carolina 27708, United States
7. Department of Biochemistry, Duke University, Durham, North Carolina 27710, United States