1. Department of Electrical and Computer Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
2. Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
3. Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
4. Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
5. GE Global Research Center, Niskayuna, New York 12309, United States
6. École Nationale Supérieure des Ingénieurs en Arts Chimiques et Technologiques, Toulouse 31030, France