신소재공학과

Research Highlight

2014F004.PNG


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 Flexible Drug Delivery Microdevice to Advance Precision Medicine ADMINI 2018.08.14 6
Notice A New Efficient Oxide Coating Technology to Improve Fuel Cells ADMINI 2018.08.03 94
Notice A High-Performance and Cost Effective Hydrogen Sensor ADMINI 2018.08.03 59
Notice KAIST Team Develops Flexible Blue Vertical Micro LEDs ADMINI 2018.06.26 293
Notice Platinum Catalyst Has Price Lowed and Durability Doubled ADMINI 2018.06.26 336
Notice Capillary Forces at Work for Lithium-Sulfur Batteries ADMINI 2018.06.26 292
Notice New Material for Generating Energy-Efficient Spin Currents ADMINI 2018.06.26 283
44 “Nature Materials” News & Views wrote by Prof. Sang Ouk Kim file admin 2015.02.17 11625
43 Hyper-stretchable elastic piezoelectric energy harvester file ADMINI 2015.04.29 9578
» The Way towards Commercialization of Highly Efficient Nanogenerator file admin 2015.02.17 9209
41 Academic Achievements & Related Awards file admin 2015.02.17 9190
40 Best Paper Award at 2014 Pan Pacific Microelectronic Symposium file admin 2015.02.17 9031
39 The First Demonstration of Self-powered Cardiac Pacemaker file admin 2015.02.17 8940
38 Equipment Development: “Hu:u” -New Concept Indoor Environmental Gauge file admin 2015.02.17 5679
37 Making Graphene Using Laser-induced Phase Separation file ADMINI 2016.12.07 4475
36 Mobile Sensor Array Platform & its Circuit Development. file admin 2015.02.17 4050
35 Intel Best Paper Award at Electronic Components and Technology Conference file admin 2015.02.17 4024
34 Excellent Paper Award at the 2014 Conference on Next Generation Lithography file admin 2015.02.17 4024
33 Seon-Jin Choi, Jinsup Lee Prize Winner at the “9th 1nside” Edge International Thesis Competition from Samsung Electro-mechanics. file admin 2015.02.17 3982
32 Grand Prize at the Dow Chemical Korea Award 2014 file admin 2015.02.17 3940
31 One of 2013 KAIST Top 10 Representative R&D Outcomes. file admin 2015.02.17 3923
30 3D Free Standing Structure Made of Graphene. file admin 2015.02.17 3919
29 The Convergence New Technology Fair Silver Award file admin 2015.02.17 3913
28 Prize Winner at 20th SAMSUNG Human Tech Paper award (2013) file admin 2015.02.17 3821
27 Review article from Prof. Sang Ouk, Kim group was published in 25th anniversary of Advanced Materials. file admin 2015.02.17 3787
26 Excellent paper Award at the Optical Society of Korea. file admin 2015.02.17 3625
25 New Nanocomposite Catalyst applied for Li-O2 Batteries with improved High-capacity and Long-cycle file admin 2015.02.17 3607