1. Istituto per la Microelettronica e i Microsistemi; IMM-CNR; Via Monteroni 73100 Lecce Italy
2. Istituto per lo Studio dei Materiali Nanostrutturati; ISMN-CNR; PO Box 10 00015 Monterotondo Stazione Roma Italy
3. Istituto di Cristallografia; IC-CNR; Via Giovanni Amendola, 122/O 70126 Bari Italy
4. Catalan Institute of Nanoscience and Nanotechnology (ICN2); CSIC and The Barcelona Institute of Science and Technology (BIST); Campus UAB, Bellaterra 08193 Barcelona Catalonia Spain
5. Catalonia Institute for Energy Research (IREC); Jardins de les Dones de Negre 1, Sant Adrià del Besòs Barcelona 08930 Catalonia Spain
6. ICREA; Pg. Lluís Companys 23 08010 Barcelona Catalonia Spain
7. Department of Information Engineering; Brescia University; Via Valotti 9 25133 Brescia Italy
8. SENSOR; Brescia University & CNR INO; Via Branze 38 25123 Brescia Italy
9. Department of Engineering Science and Mathematics; Luleå University of Technology; 971 98 Luleå Sweden