Prof. Wanjun Hao is a professor at the School of Materials Science and Engineering at Hainan University. He graduated with a Ph.D. in Materials Science from Jilin University and is a postdoctoral fellow in Condensed Matter Physics at the Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences. He is also an expert at the Chinese Energy Society, an international cooperation review expert, and an evaluation expert at the Degree Center of the Ministry of Education. In 2001 and 2006, he went to the Miyagi Prefecture Industrial Technology Center and Yokohama National University in Japan to cooperate on optoelectronic functional materials technology research. He is mainly engaged in the research and development of electromagnetic wave absorption materials, green building materials, new energy materials and technologies, etc.