Prof. Dr. Pengfei Guo received his Master and Doctoral Degrees from the College of Materials Science and Engineering of Hunan University in 2014. He was selected for the “Hong Kong Scholars Program” in 2015. From 2016 to 2018, he worked as a Postdoctoral Research Fellow and Hong Kong Scholar in the Department of Physics at the City University of Hong Kong. He is a full professor in College of Electronic Information and Optical Engineering at the Taiyuan University of Technology. His research interests include the synthesis of low-dimensional semiconductor materials and applications in future electronics, optoelectronic, nanophotonics, and energy technologies.