1. MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
2. Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
3. Electron Microscopy for Materials Science, University of Antwerp, 2020 Antwerp, Belgium
4. Canon Production Printing Netherlands, P.O. Box 101, 5900 MA Venlo, The Netherlands