1. Materials Science and Engineering Program, University of California, San Diego, La Jolla, California 92093, USA
2. Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, USA
3. Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, California 92093, USA
4. Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, USA
5. Applied Materials, Sunnyvale, California 94085, USA
6. Rasirc, Inc., San Diego, California 92126, USA