Dr. Junwen Zhong
Department of Electrical Engineering and Computer Sciences, UC Berkeley
BSAC Postdoctoral Researcher, Liwei Lin Group
December 11, 2018 | 12:00 to 01:00 | 490 Cory Hall
Host: Michael Cable
With the rise of intelligent wearable electronics and the Internet of Things (IoT), flexible energy harvesters/sensors that can convert irregular mechanical energy/signals into electrical domains and mechanical actuators that emulate mechanical stimulations, with performances similar or exceeding their natural counterparts, have attracted much attention. Various electret and piezoelectret flexible energy harvesters, sensors, and actuators based on the fundamental working mechanism of electrostatic induction caused by surplus charges will be presented. Through optimization of the device structure and ability of the electret and piezoelectret materials to capture charges, the output power of these energy harvesters, the sensitivity of the sensors, and the output force of the actuators are improved. These flexible transducers have demonstrated applications including mobile health care, human interaction and wireless communication, and promise valuable insights to develop self-powered and human interactive systems with high properties.
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