1. Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
2. Laboratory of Materials and Interface Chemistry and Center for Multiscale Electron Microscopy Department of Chemical Engineering and Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
3. Institute for Complex Molecular Systems Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
4. Physical Sciences Division Pacific Northwest National Laboratory Richland WA 99352 USA
5. Department of Materials Science and Engineering University of Washington Seattle WA 98195 USA