1. Université Paris-Saclay CEA CNRS NIMBE LICSEN CEA Saclay 91191 Gif-sur-Yvette Cedex France
2. Diamond Sensors Laboratory LIST CEA CEA Saclay 91191 Gif-sur-Yvette Cedex France
3. Current address: Department of Electronic and Electrical Engineering University College London 17-19 Gordon Street London WC1H 0AH United Kingdom