1. Institut für Physik Technische Universität Chemnitz Reichenhainer Str. 70 09126 Chemnitz Germany
2. Center for Materials Architectures and Integration of Nanomembranes (MAIN) Rosenbergstr. 6 09126 Chemnitz Germany
3. Center for Nanotechnology Innovation@NEST Istituto Italiano di Tecnologia Piazza San Silvestro 12 Pisa 56127 Italy
4. Graphene Labs Istituto Italiano di Tecnologia Via Morego 10 Genova 16163 Italy