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 2018.04.24 692
Notice Researchers develop flexible vertical micro LED ADMINI 2018.02.07 851
Notice Lifespan of Fuel Cells Maximized using Small Amount of Metals ADMINI 2018.01.21 955
Notice A New Spin Current Generating Material Developed ADMINI 2017.12.21 1123
Notice Professor Kim Sang Ouk of KAIST participated in editorship of GRAPHIN NEW MATERIALS ADMINI 2017.10.23 1563
Notice Pd nanowire array-based ultra-fast hydrogen gas sensor by using engineered nanofiltration of metal-organic framework ADMINI 2017.09.27 1713
30 7 nanometer Semiconductor Manufacturing Technology with Camera Flash file ADMINI 2017.09.14 1822
29 Development of disease diagnjosis sensor using animal protein catalyst file ADMINI 2017.07.20 1978
28 Making Graphene Using Laser-induced Phase Separation file ADMINI 2016.12.07 4398
27 Hyper-stretchable elastic piezoelectric energy harvester file ADMINI 2015.04.29 9495
26 “Nature Materials” News & Views wrote by Prof. Sang Ouk Kim file admin 2015.02.17 11543
25 Academic Achievements & Related Awards file admin 2015.02.17 9115
24 Best Paper Award at 2014 Pan Pacific Microelectronic Symposium file admin 2015.02.17 8961
» The Way towards Commercialization of Highly Efficient Nanogenerator file admin 2015.02.17 9149
22 The First Demonstration of Self-powered Cardiac Pacemaker file admin 2015.02.17 8875
21 Equipment Development: “Hu:u” -New Concept Indoor Environmental Gauge file admin 2015.02.17 5676
20 The Convergence New Technology Fair Silver Award file admin 2015.02.17 3910
19 Grand Prize at the Dow Chemical Korea Award 2014 file admin 2015.02.17 3937
18 Mobile Sensor Array Platform & its Circuit Development. file admin 2015.02.17 4046
17 Intel Best Paper Award at Electronic Components and Technology Conference file admin 2015.02.17 4021