ILIAS CHLIS (Marconi Lab, Micro & Nano Systems Centre, Tyndall National Institute, Cork, Ireland/Electrical and Electronic Engineering, School of Engineering, University College Cork, Cork, Ireland/Cypress Semiconductor Ireland, Cork, Ireland), Domenico Pepe (Marconi Lab, Micro & Nano Systems Centre, Tyndall National Institute, Cork, Ireland/DISMI, Università di Modena e Reggio Emilia, Reggio Emilia, Italy), Domenico Zito (Marconi Lab, Micro & Nano Systems Centre, Tyndall National Institute, Cork, Ireland/ Electrical and Electronic Engineering, School of Engineering, University College Cork, Cork, Ireland)