[1] Univ Illinois, Mat Res Lab, 104 South Goodwin, Urbana, IL 61801 USA
[2] Univ Illinois, Dept Mat Sci, 104 South Goodwin, Urbana, IL 61801 USA
[3] Linkoping Univ, Dept Phys Chem & Biol, SE-58183 Linkoping, Sweden
[4] Natl Taiwan Univ Sci & Technol, Dept Mat Sci, Taipei 10607, Taiwan
[5] Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22903 USA
[6] IBM TJ Watson Res Ctr, Yorktown Hts, NY 10598 USA
[7] Tandon Sch Engn, Dept Chem & Biomol Engn, Brooklyn, NY 11201 USA