The acoustoelectric effect refers to the electron-phonon interactions between the electronic charge carriers in the semiconductor and the SAW phonons, which results in acoustic velocity change and attenuation. This effect plays a crucial role in various applications within SAW devices, including gas sensing, optoelectronic detection, and integrated devices for surface acoustic wave filtering and amplification. This lecture provides a detailed overview of the research conducted by our team in the realm of acoustoelectric effects, encompassing precise modeling techniques, the design and fabrication of high-performance SAW gas and UV sensors, and the development of a novel, highly sensitive PT gas sensor based on engineering acoustic wave losses. Finally, we offer insights into potential future directions and trends in this research field.

Biography
Wei Luo received the B.S. degree in electronic science and technology and the Ph.D. degree in microelectronics and solid state electronics from the Huazhong University of Science and Technology, Wuhan, China, in 2004 and 2009, respectively. From 2009 to 2012, he was a Postdoctoral Fellow in the Department of Electrical and Information Engineering, Huazhong University of Science and Technology. In 2012, he joined the School of Optics and Electronic Information, Huazhong University of Science and Technology. From 2014 to 2016, he was a visiting scholar in the University of Michigan, Ann Arbor, USA. He is currently a Professor and assistant Dean of the School of Integrated Circuits, Huazhong University of Science and Technology. His research interests include high-frequency acoustic MEMS sensors for application in harsh environment, intelligent microsystems.