1. Research Centre for Nanotechnologies and Carbon‐based NanomaterialsNational Institute for Research and Development in MicrotechnologiesVoluntari Ilfov Romania
2. Faculty of PhysicsUniversity of BucharestMagurele Ilfov Romania
3. Low Temperature Plasma LaboratoryNational Institute for Laser, Plasma, and Radiation PhysicsMagurele Ilfov Romania