1. Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109-8099; Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125; Center for Nanoscience, and Department of Physics and Astronomy, University of Missouri, St. Louis, Missouri 63121-4400; and Department of Materials Science and Engineering, University of...