1. School of Electrical Engineering, Xi’an University of Technology, Xi’an, Shaanxi 710048, China
2. Materials Physics Laboratory, Department of Physics, Faculty of Science, Prince of Songkla University (PSU), Songkhla 90112, Thailand
3. School of Material Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi’an 710021, China