1. Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
2. School of Chemistry and Chemical Engineering, Xi’an University of Science & Technology, Xi’an 710054, China
3. Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China
4. Poly K Technologies Co., State College, Pennsylvania 16803, United States