Flexible Piezoelectret/Piezoelectronic Electromechanical Transducers for Human-Machine Interactivity

Title

Flexible Piezoelectret/Piezoelectronic Electromechanical Transducers for Human-Machine Interactivity

Speaker

Prof. Junwen Zhong (钟俊文), Department of Electronicomechanical Engineering, University of Macau

Host

Prof. Yan Wang (GTIIT, ChE)

Time and Location

Dec. 13, 2022, Tuesday, 10:00am-11:00am (Beijing Time), E408 (Education Building, 4th floor)

Language

English

Zoom ID: 637 109 7859

https://gtiit.zoom.us/j/6371097859

Abstract

A fully interconnected and intelligent living environment has been a grand challenge for future smart society and it is critically essential to develop the interactive sensing and actuating systems to bridge the human-machine interfaces. Here, flexible electromechanical transducers based on high-performance piezoelectret or piezoelectric polymers are fabricated to selectively perform either the actuating or sensing function. As sensors, both low pressure detection limit for sensing resolution and excellent stability have been achieved, with typical application in monitoring human physiological signals. As actuators, mechanical vibrations with large output force have been produced for providing haptics feedback to human skin. Such actuators are also used to construct soft robotics with high agility and controllability to explore surroundings, like detecting gas leakage. The design principle together with the sensing and driving characteristics can be further developed and extended to other soft matters and flexible devices.

Keywords: Human-machine Interactivity; Electromechanical; Sensors; Actuators; Robotics

Biography

Dr. Junwen Zhong joined Department of Electromechanical Engineering, University of Macau since 2020/11. His research interests include self-powered systems, flexible sensors, electromechanical actuators, and soft robots. He got his B.S. Degree in 2011 and Ph.D Degree in 2016 from Huazhong University of Science and Technology China. He was a postdoctoral researcher in University of California Berkeley USA, from 2016-2019, and a special postdoctoral researcher in RIKEN Japan, in 2020. Dr. Junwen Zhong has published 1 US patent, 11 Chinese patents, 2 book chapter, and over 60 papers, among which over 30 papers are published as the first author or corresponding author in top journals with IF>10. Some of his papers are published in top journals like Science Robotics, Nature Communications, Energy & Environmental Science, Advanced Materials, Advanced Functional Materials, ACS Nano, Nano Energy, and Biosensors and Bioelectronics. He has over 5600 citations with H-index of 31. His researching works are reported by Science, Nature Nanotechnology, Scientific American, Nature Electronics, Chemical & Engineering News, Electronics Europe News, New Scientist, Berkeley News as highlights.