Material Science Department, Display materials laboratory, Korea Advanced Institute of Science and Technology, Daejeon, Korea

"Raluca Ripan" Institute of Chemistry, Cluj-Napoca, Romania

Ioffe Physical -Technical Institute, St-Petersburg, Russia

Ben-Gurion University of the Negev, Beer-Sheva, Israel

Cavendish Laboratory, Cambridge, UK

Laboratory of electron microscopy, Moscow State University, Russia