1. Eindhoven University of Technology, Department of Applied Physics, De Rondom 70, 5612 AP, Eindhoven, The Netherlands
2. Eindhoven University of Technology, Department of Chemical Engineering and Chemistry, Center for Multiscale Electron Microscopy, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
3. Netherlands Organization for Applied Scientific Research (TNO), High Tech Campus 25, 5656 AE, Eindhoven, The Netherlands