1. Phenikaa University Nano Institute (PHENA), Phenikaa University, Hanoi 12116, Vietnam
2. Faculty of Physics, VNU University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam
3. Institute of Materials Science (IMS) and Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi 10000, Vietnam
4. Faculty of Materials Science and Engineering (MSE), Phenikaa University, Hanoi 12116, Vietnam