Engineering of Functional Materials for Triboelectric and Piezoelectric Nanogenerators (onsite and online)
Prof. Ju-Hyuck Lee
Department of Energy Science and Engineering
Daegu Gyeongbuk Institute of Science and Technology (DGIST)
Republic of Korea
Date & Time
Monday, 13 November 2023
CPD-LG.39, Central Podium HKU
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Meeting ID: 967 1364 3125
Exploring the possibilities of renewable, sustainable, and green energy sources to replace fossil fuels is one of the most significant and challenging issues in energy research because of air/water pollution and oil depletion due to the use of fossil fuels. Researchers have developed energy generator with piezoelectric and triboelectric properties as a renewable energy source that can convert mechanical energy into electricity. In addition, considering the low power consumption features of various portable devices, wearable devices, numerous sensors for internet of things (IoT), and body implantable devices, the concept of power generation through energy generation from environmental sources has gained great attention. As well-known, the energy generating device based on triboelectric and piezoelectric effect have the advantages of high output, simple design, low cost, flexibility, thin device packages, and light weight. To date, the design and development of device structures, materials and systems has been intensively investigated for improving their output performance. Our major goal is designing and development of energy generation materials and device for the realization of self-powered electronics. In this presentation, I will introduce recent investigation of piezoelectric and triboelectric materials and their applications.
Prof. Ju-Hyuck Lee is an associate professor in department of energy science and engineering in the Daegu Gyeonbuk Institute of Science and Technology (DGIST) at South Korea. He received his B.S. degree from Sungkyunkwan University in Advanced Materials Science and Engineering and his M.S. and Ph.D. degrees from Sungkyunkwan University in Nano Engineering. Prior to his current role, Dr. Lee served as a Postdoctoral Research Fellow at the University of California, Berkeley, from 2016 to 2018. Since the fall of 2018, he has been dedicated to his present position. Dr. Lee's primary research focus revolves around mechanical energy harvesting technologies, primarily utilizing the piezoelectric and triboelectric effects, to advance self-powered electronics. In recent times, his research efforts have been concentrated on designing and developing functional polymers to enhance the performance of triboelectric nanogenerators, aiming for high functionality. He also maintains a strong interest in the development of biomolecular materials-based piezoelectricity and their applications.
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