1. Department of Physics, School of Applied Sciences, REVA University, Bangalore 560064, India
2. School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
3. Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong 999077, China
4. Future Materials & Devices Lab., Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Vietnam
5. The Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang 550000, Vietnam