1. Department of Mathematics and Physics
2. University Of Salento
3. 73100 Lecce
4. Italy
5. CNR NANOTEC - Istituto di Nanotecnologia
6. CNR NANO - Istituto Nanoscienze
7. Solid State and Structural Chemistry Unit
8. Indian Institute of Science
9. Bengaluru
10. India
11. Department of Physics
12. Council of Scientific and Industrial Research – Network of Institutes for Solar Energy (CSIR-NISE)