CNR NANOTEC;
Institute of Nanotechnology;
Campus Ecotekne;
Via Monteroni;
73100 Lecce;
Italy;
Dipartimento di Ingegneria dell’Innovazione;
Universita del Salento;
Campus Ecotekne;
via Monteroni;
73100 Lecce;
Italy;
Institute of Semiconductor and Solid State Physics;
Johannes Kepler University;
Altenbergerstr.69;
Linz 4040;
Austria;
Dipartimento di Matematica e Fisica E.De Giorgi;
Universita del Salento;
Campus Ecotekne;
via Monteroni;
Lecce 73100;
Italy;
PRISM;
Princeton Institute for the Science and Technology of Materials;
Princeton University;
Princeton;
NJ 08540;
USA;
Faculty of Science and Engineering;
University of Wolverhampton;
Wulfruna Street;
Wolverhampton WV11LY;
UK;
Russian Quantum Center;
Novaya 100;
143025 Skolkovo;
Moscow Region;
Russia;