1. National Center for Technological Progress, Ministry of Science and Technology,Center for Microelectronics and Information Technology,Hanoi,Vietnam
2. VNU University of Engineering and Technology, Hanoi,Faculty of Electronics and Telecommunications,Hanoi,Vietnam
3. Institute of Physics Vietnam Academy of Science and Technology,Hanoi,Vietnam
4. VNU University of Science, Vietnam National University, Hanoi,Nano and Energy Center,Hanoi,Vietnam
5. VNU University of Science, Vietnam National University, Hanoi,The Faculty of Physics,Hanoi,Vietnam