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
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24 Best Paper Award at 2014 Pan Pacific Microelectronic Symposium file admin 2015.02.17 9031
» The Way towards Commercialization of Highly Efficient Nanogenerator file admin 2015.02.17 9209
22 The First Demonstration of Self-powered Cardiac Pacemaker file admin 2015.02.17 8940
21 Equipment Development: “Hu:u” -New Concept Indoor Environmental Gauge file admin 2015.02.17 5679
20 The Convergence New Technology Fair Silver Award file admin 2015.02.17 3913
19 Grand Prize at the Dow Chemical Korea Award 2014 file admin 2015.02.17 3940
18 Mobile Sensor Array Platform & its Circuit Development. file admin 2015.02.17 4050
17 Intel Best Paper Award at Electronic Components and Technology Conference file admin 2015.02.17 4024
16 Excellent Paper Award at the 2014 Conference on Next Generation Lithography file admin 2015.02.17 4024
15 One of 2013 KAIST Top 10 Representative R&D Outcomes. file admin 2015.02.17 3923
14 3D Free Standing Structure Made of Graphene. file admin 2015.02.17 3919
13 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
12 Review article from Prof. Sang Ouk, Kim group was published in 25th anniversary of Advanced Materials. file admin 2015.02.17 3787
11 Prize Winner at 20th SAMSUNG Human Tech Paper award (2013) file admin 2015.02.17 3821
10 Excellent paper Award at the Optical Society of Korea. file admin 2015.02.17 3625
9 New Nanocomposite Catalyst applied for Li-O2 Batteries with improved High-capacity and Long-cycle file admin 2015.02.17 3607
8 Doctoral candidate Wan Heui Lee won the "Outstanding Poster Award" at The 2013 Spring Conference of the Kroean Institute of Metals and Materials", held in Jeju, Korea file admin 2015.02.17 3338
7 Doctoral candidate Heong Min Jin won the Outstanding Poster Award at Conference of the Next Generation Lithography 2013 file admin 2015.02.17 2372
6 Doctoral candidate Min-Jae Choi won the Excellent Poster Award in the Spring Meeting of the Korean Chemical Society file admin 2015.02.17 2255
5 Exhaled breath sensor for the diagnosis of diabetes, highlighted in Nanowerk spotlight file admin 2015.02.17 2242