1. Department of Chemistry Purdue University 560 Oval Drive West Lafayette IN 47907 USA
2. School of Materials Engineering Purdue University 701 W. Stadium Avenue West Lafayette IN 47907 USA
3. Department of Chemistry University of Padova 1, Via Marzolo Padova 35131 Italy
4. Birck Nanotechnology Center, Discovery Park Purdue University 1205 W. State St. West Lafayette IN 47907 USA
5. Physical Science Division Pacific Northwest National Laboratory P.O. Box 999, MSIN K8-88 Richland WA 99352 USA
6. School of Electrical and Computer Engineering Purdue University 465 Northwestern Avenue West Lafayette IN 47907 USA