Dr. Wenbo Peng received his B.S. degree in microelectronics and his Ph.D. degree in electronics science and technology from Xi’an Jiaotong University, Xi’an, China, in 2010 and 2016, respectively. From 2014 to 2016, he was a Visiting Ph.D. student at the School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, USA, under the supervision of Prof. Z. L. Wang, supported by the program of the China Scholarship Council. His current research interests include piezotronics/piezo-phototronics, tribotronics, surface acoustic wave sensors, and triboelectric nanogenerators.