신소재공학과

Research Highlight

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Prof. Keon Jae Lee and co-workers had made a progressive breakthrough for enhancing the operating efficiency of self-powered flexible piezoelectric energy harvester. The flexible and lightweight energy harvester, called nanogenerators, can scavenge external force from the extremely tiny impulsion triggered by wind flow, water flow, heartbeats, diaphragm activities, and respiration movements so as to convert it into electrical signals, which not only constructed self-powered flexible electronic systems, but also was exploited as permanent power sources for implantable biomedical devices such as cardiac-tachometers, pacemakers, and deep brain stimulators. Until now, poor efficiency and complicated fabrication process are regarded as biggest barrier against mass commercialization. Transferring high-quality piezoelectric thin film from sapphire to plastic substrate via laser lift off (LLO) technique made the PZT thin film nanogenerator show high-output performance of ~250V which is enough for turning on 100 LEDs. This is almost 40 times higher than previously reported similar concepts. 

No. Subject Author Date Views
Notice KAIST Develops Sodium Ion Batteries using Copper Sulfide ADMINI 2018.04.24 468
Notice Researchers develop flexible vertical micro LED ADMINI 2018.02.07 669
Notice Lifespan of Fuel Cells Maximized using Small Amount of Metals ADMINI 2018.01.21 766
Notice A New Spin Current Generating Material Developed ADMINI 2017.12.21 932
Notice Professor Kim Sang Ouk of KAIST participated in editorship of GRAPHIN NEW MATERIALS ADMINI 2017.10.23 1389
Notice Pd nanowire array-based ultra-fast hydrogen gas sensor by using engineered nanofiltration of metal-organic framework ADMINI 2017.09.27 1551
Notice 7 nanometer Semiconductor Manufacturing Technology with Camera Flash ADMINI 2017.09.14 1677
Notice Development of disease diagnjosis sensor using animal protein catalyst ADMINI 2017.07.20 1846
Notice Making Graphene Using Laser-induced Phase Separation ADMINI 2016.12.07 4252
Notice Hyper-stretchable elastic piezoelectric energy harvester ADMINI 2015.04.29 9347
Notice “Nature Materials” News & Views wrote by Prof. Sang Ouk Kim admin 2015.02.17 11396
Notice Academic Achievements & Related Awards admin 2015.02.17 8981
Notice Best Paper Award at 2014 Pan Pacific Microelectronic Symposium admin 2015.02.17 8826
» The Way towards Commercialization of Highly Efficient Nanogenerator admin 2015.02.17 9013
Notice The First Demonstration of Self-powered Cardiac Pacemaker admin 2015.02.17 8730
21 Equipment Development: “Hu:u” -New Concept Indoor Environmental Gauge file admin 2015.02.17 5625
20 The Convergence New Technology Fair Silver Award file admin 2015.02.17 3859
19 Grand Prize at the Dow Chemical Korea Award 2014 file admin 2015.02.17 3886
18 Mobile Sensor Array Platform & its Circuit Development. file admin 2015.02.17 3996
17 Intel Best Paper Award at Electronic Components and Technology Conference file admin 2015.02.17 3972