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Geon-Tae Hwang
Researcher at Pukyong National University
Publications - 112
Citations - 7754
Geon-Tae Hwang is an academic researcher from Pukyong National University. The author has contributed to research in topics: Piezoelectricity & Energy harvesting. The author has an hindex of 32, co-authored 91 publications receiving 5770 citations. Previous affiliations of Geon-Tae Hwang include KAIST.
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Piezoelectric BaTiO₃ thin film nanogenerator on plastic substrates.
TL;DR: The results show that a nanogenerator can be used to power flexible displays by means of mechanical agitations for future touchable display technologies.
Journal ArticleDOI
Highly-efficient, flexible piezoelectric PZT thin film nanogenerator on plastic substrates.
Kwi-Il Park,Jung Hwan Son,Geon-Tae Hwang,Chang Kyu Jeong,Jungho Ryu,Koo Min,Insung S. Choi,Seung Hyun Lee,Myunghwan Byun,Zhong Lin Wang,Keon Jae Lee +10 more
TL;DR: A highly-efficient, flexible piezoelectric PZT thin film nanogenerator is demonstrated using a laser lift-off (LLO) process that harvests the highest output performance from regular bending motions and generates power sources that successfully operate over 100 LEDs.
Journal ArticleDOI
Flexible Nanocomposite Generator Made of BaTiO 3 Nanoparticles and Graphitic Carbons
Kwi-Il Park,Minbaek Lee,Ying Liu,San Moon,Geon-Tae Hwang,Guang Zhu,Ji-Eun Kim,Sang Ouk Kim,Do Kyung Kim,Zhong Lin Wang,Keon Jae Lee +10 more
TL;DR: One way of energy harvesting without such restraints is to utilize piezoelectric materials that can convert vibrational and mechanical energy sources from human activities such as pressure, bending, and stretching motions into electrical energy.
Journal ArticleDOI
Self-Powered Cardiac Pacemaker Enabled by Flexible Single Crystalline PMN-PT Piezoelectric Energy Harvester
Geon-Tae Hwang,Hyewon Park,Jeong Ho Lee,SeKwon Oh,Kwi-Il Park,Myunghwan Byun,Hyelim Park,Ahn Gun,Chang Kyu Jeong,Kwangsoo No,Hyuk-Sang Kwon,Sang Goo Lee,Boyoung Joung,Keon Jae Lee +13 more
TL;DR: A flexible single-crystalline PMN-PT piezoelectric energy harvester is demonstrated to achieve a self-powered artificial cardiac pacemaker that meets the standard for charging commercial batteries but also for stimulating the heart without an external power source.