1. Electron Microscopy for Materials Science − EMAT, University of Antwerp, Groenenborgerlaan 171, BE-2020 Antwerp, Belgium
2. State Key Laboratory of Silicon Materials, Department of Materials
Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
3. Netherlands Organization for Scientific Research (NWO),
DUBBLE@ESRF, 6 rue Jules Horowitz, 38043 Grenoble, France