1. Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
2. Department of Chemistry, Biology and Health Sciences, South Dakota School of Mines and Technology, Rapid City, SD 57701, USA
3. Karen M. Swindler Department of Chemical and Biological Engineering, South Dakota School of Mines and Technology, Rapid City, SD 57701, USA
4. Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
5. Department of Physics, South Dakota School of Mines and Technology, Rapid City, SD 57701, USA
6. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
7. Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE 68588, USA