1. Institute of Functional Nano & Soft Materials Collaborative Innovation Center of Suzhou Nano Science & Technology Soochow University 199 Ren-Ai Road Suzhou 215123 China
2. Department of Electronic and Biomedical Engineering Universitat de Barcelona Martí i Franquès 1 E-08028 Barcelona Spain
3. Electrical and Computer Engineering Department University of California at Santa Barbara Santa Barbara CA 93106–9560 USA
4. Central European Institute of Technology Brno University of Technology Purkyňova 123 61200 Brno Czech Republic
5. Institute of Physical Engineering Brno University of Technology Technická 2 61669 Brno Czech Republic
6. Departamento de Electrónica y Tecnología de Computadores Universidad de Granada Facultad de Ciencias Avd. Fuentenueva s/n Granada 18071 Spain
7. Materials Science and Engineering Department Guangdong Technion – Israel Institute of Technology Shantou 515063 China
8. Physical Sciences and Engineering Division King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia