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 Keon Jae Lee (이건재)


Professor, Ph.D  

  Department of Materials Science and Engineering, KAIST

KAIST Institute for Artificial Intelligence

Young KAST Member of Korea Academy of Science and Technology (KAST)

Editorial Advisory Board, Advanced Materials (Wiley, IF=27.4)

Director, Center for Humanplus Artificial Intelligent Sensor












W-1 Building # 4306    (Map,  Google map)

Department of Materials Science and Engineering, KAIST

373-1 Guseong Dong, Yusung-gu, Daejeon, Korea, Zip:305-701

Phone:8242-350-3343, Fax:8242-350-3310

Email: keonlee@kaist.ac.kr

URL  : http://fand.kaist.ac.kr 

CV    : Prof. Lee's CV

Google Scholar: http://goo.gl/eyzp9W  h-index: 64

 University of Illinois at Urbana-Champaign, IL, United States. (Ph.D, 2006)

 Yonsei University, Seoul, Korea (B.S., 2001)

 Daewon Foreign Language High School (1994)




2018-current:    Professor, Dept. of Materials Science and Engineering, KAIST 

2020-current:    Editorial Advisory Board, Advanced Materials (Wiley, Impact Factor=27.4, http://bit.ly/3rOpUci

2018-current:     Young KAST member, Korea Academy of Science and Technology (차세대 한국과학기술한림원 회원)

2020- current:    Director, Center for Humanplus Artificial Intelligent Sensor

2019-2020:       Visiting Professor, Brain Science Institute, KIST (한국과학기술연구원 뇌과학연구소)

2009-2018:       Assistant & Associate Professor, Dept. of Materials Science and Engineering, KAIST 

2020 Aug   :       Guest Editor of Advanced Materials (IF=27.4), 'Special Issue on KAIST 50th Anniversary'

2019 May:        Guest Editor of Nano Energy (IF=16.6), 'Special Issue on 4th NGPT in Korea'

2018 May:         Chair of 4th International Conference on Nanogenerator and Piezotronics (NGPT)

2013-2014:       Visiting Professor, Harvard Medical School, Harvard University, Boston, MA, USA

2012-2015:       Director, Flexible and Nanobio National Research Lab.

2011-2016:       Constultant to KOLON, Center for KOLON-KAIST Lifestyle Innovation.

Current Research:

Flexible piezoelectric acoustic sensors

Flexible GaN/GaAs microLED for display and biomedical applications

Flexible large scale integration (LSI)  

Flexible memory (memristor and phase change memory)

Laser material interactions for flexible electronics

Stretchable healthcare sensors

Self-powered flexible electronic systems


Research Experience:

Laser material interaction for flexible electronics and nanomaterials

      Laser lift-off for flexible electronic and display

      Laser material interaction for 1D and 2D nanomaterials

Flexible electronic & optoelectronic devices

              Flexible large scale integration (LSI)

              Neuromorphic memory devices (Memristor, Phase change memory)

              Flexible GaAs/GaN micro LED for display and biomedical applications

      Flexible electronics for invivo biomedical applications

Self-powered system

              Self-powered flexible piezoelectric acoustic sensor

              Self-powered flexible piezoelectric healthcare sensor               

              Flexible piezoelectric energy harvesting and strorage devices

              Flexible triboelectric energy harvesting devices

Next Generation Memory Devices

              Self assembly for low-power PRAM

              Self assembly for memristor devices

              Flexible memory (RRAM, PRAM & Flash Memory)    

              Self-structured filament nanoheater for PRAM

Lab-on-a-chip (LOC) for bio-molecule detection

    Biochip using capillary electrophoresis electrochemistry detection (CEEC) for separating neurotransmitter molecules

         Microfluidics using PDMS soft lithography   

Analytical equipment

         Scanning electron microscopy (SEM), Transmission electron microscopy (TEM)

         Secondary ion mass spectroscopy (SIMS),  Raman spectroscopy

         Atomic Force microscopy (AFM), X-ray diffraction analysis, X-ray photoelectron spectromether (XPS)

Microfabricaton techniques

     Nanopatterning (50 -100 nm) and soft lithography

     UHV thin film growth of energy and semiconductor materials

        Dry & Wet etching : Inductively coupled plasma etching (ICP)    

Electrical property measurement

        LED measurement of EL, PL, CIE and power intensity

        Memory measurement for RRAM, PRAM and Flash memory,

        Capacitance-Voltage and Current-Voltage measurements


Honor and Awards

2019 Prof. Lee won '2019 KAIST Technology Innovation Award'

2019 Prof. Lee won '2019 KAIST Impact Research Award' for top 1% citation among KAIST Engineering School

2018 Prof. Lee was selected for Young KAST member from Korean Academy of Science and Technology

2017 Prof. Lee won Outstanding Paper Award from Nano Convergence

2017 Prof. Lee won KAIST Institute Fusion Research Award

2015 Prof Lee won 'Advanced Materials Scientist Award' from International Association of Advanced Materials (IAAM, Sweden)

2015  Prof. Lee won '2014 KAIST Top 10 Research Award'

2014 Prof. Lee gave an invited talk at Summer Davos Forum as KAIST Representative.

2014 Prof. Lee won Minister's Award from Ministry of Science, ICT and Future Planning. (미래창조과학부 장관상 수상)

2014  Cover feature articles for Advanced Materials (April, July & Nov), Advanced Functional Materials (May), and Small (Jan).

2014  Prof. Lee gave an invited talk at Harvard University and MIT, Boston.

2012  Flexible battery is highlighted in Nature as ' The Most Viewed Papers in Science'.

2012  Prof. Lee won '2012 Merck Young Scientists Awards' from 12th International Meeting on Information Display. (IMID, Aug 12)

2012  FAND group  was selected for National Research Laboratory from National Research Foundation of Korea.

2012  Prof. Lee gave 'Keynote Speak' at International SPIE Conference  (San Diego, Aug 2012)

2012  Prof. Lee gave 'Plenary Speak' at International Conference of Chinese Society of Micro-Nano Technology (Hangzhou, Nov 2012)

2011  Prof. Lee won '2011 KAIST Technology Innovation Award'

2010  Thin Film Nanogenerator is selected as 'Top 10 Lifestyle Innovation Technology', Donga Science

2009  George Smith Award for the best paper published in IEEE Elect. Dev. Lett. in 2008

2006  Three dimensional chips are published in Science  

2006  The patents of printed semiconductor technology are licensed to Semprius Inc.

2006  Printed semiconductor technology won 2006 Innovation Award of Wall Street Journal

2006  Cover feature article for the Jan issue of Nature Materials


Representative Publications (Corresponding Author, KAIST)

"Multidisciplinary Materials Research in KAIST over Last 50 Years", Adv. Mater., 32, 2000696, 2020

"Progress in Brain-Compatible Interfaces with Soft Nanomaterials", Adv. Mater., 32, 1907522, 2020

"Flexible Piezoelectric Acoustic Sensor and Machine Learning for Speech Processing", Adv. Mater., 32, 1904020, 2020

"Flash-Induced Ultrafast Recrystallization of perovskite for Flexible Light-Emitting Diodes", Nano Energy,  61, 236, 2019

"Flexible PZT Energy Harvester with Energy Extraction Enhancement Circuit", Nano Energy, 58, 211, 2019

"Micro Light-Emitting Diodes for Display and Biomedical Applications", Adv. Funct. Mater, 29, 1808075, 2019

"Flexible Crossbar-Structured Phase Change Memory Array ", Adv. Funct. Mater.,  29, 1806338, 2019

""Achieving High Resolution Pressure Mapping via Flexible GaN/ZnO Nanowire LEDs Array", Nano Energy, 58, 633, 2019

"Novel Electronics for Flexible and Neuromorphic Computing", Adv. Funct. Mater.  28, 1801690, 2018

"Trichogenic Photostimulation Using Flexible Micro LED", ACS Nano, 12, 9587, 2018

"Machine Learning-based Self-powered Acoustic Sensor for Speaker Recognition", Nano Energy, 53, 658, 2018

"Basilar Membrane-Inspired Self-Powered Acoustic Sensor", Nano Energy, 53, 198, 2018

"Monolithic Flexible Vertical GaN LED for Transparent Wireless Brain Optical Stimulator", Adv. Mater., 30, 1800649, 2018

"Optogenetic Control of Body Movements via Flexible Vertical Light-Emitting Diodes", Nano Energy, 44, 447, 2018

"Self-Powered Real-Time Arterial Pulse Monitoring using Epidermal Piezoelectric Sensors", Adv. Mater., 29, 1702308, 2017

"Flash Light Millisecond Self-Assembly of High χ Block Copolymers", Adv. Mater., 29, 1700595, 2017

"Laser-induced Phase Separation of silicon carbide" Nature Comm.,  7, 13562, 2016

"Laser Material Interaction for Flexible Application" Adv. Mater. 29, 1603473, 2017

"Flash-Induced Self-Limited Plasmonic Welding of Silver Nanowire Network" Adv. Mater. 29, 1603473, 2017

"High-Performance Flexible Thermoelectric Power Generator using Laser Multi-Scanning Lift-Off" ACS Nano, 10, 10851, 2016

"Reliable Memristive-Switching Memory Devices by Densely-Packed Silver Nanocone Arrays", ACS Nano, 10, 9478, 2016

"Skin-Like Oxide Thin-Film Transistors for Transparent Displays" Adv. Funct. Mater.,  26, 6170, 2016

"Self-powered Wireless Sensor by Aerosol PZT Flexible Energy Harvester" Adv. Energy Mater6, 1600237, 2016

"Laser Writing Block Copolymer Self-Assembly on Graphene Light Absorbing Layer"  ACS Nano, 10, 3435, 2016

"Optogenetic Mapping of Functional Connectivity in Freely Moving Mice via iWEBS" ACS Nano, 10, 2791, 2016

"Self-powered Deep Brain Stimulation via a Flexible PIMNT Energy Harvester"  Energy Environ. Sci. 8, 2677, 2015

"Self-Structured Conductive Filament Nanoheater for Phase Change Memory"  ACS Nano, 9, 6587, 2015

"Performance Enhancement of Electronic and Energy Devices via Block Copolymer Self-Assembly" Adv. Mater., 27, 3982, 2015

"Hyper-Stretchable Elastic Composite Energy Harvester "  Adv. Mater.,  27, 2866, 2015  

"Flexible Phase Change Memory Array via Block Copolymer Self-assembly" ACS Nano, 9, 4120, 2015

"Reconfigurable Rectified Flexible Energy Harvester via Single Crystal PMN–PZT", Adv. Energy Mater.  5, 1500051, 2015

"Self-powered Flexible Electronic Systems" Invited Review, Nano Energy, 14, 111, 2015

"Topographically-Designed Triboelectric Nanogenerator via Block Copolymer Self-Assembly" Nano Letters, 14, 7031, 2014

"Reliable Control of Filament Formation in Resistive Memories by Self-assembled Block Copolymer" ACS Nano, 8 9492, 2014

"Flexible Crossbar Resistive Memory Arrays via Inorganic-based Laser Lift-off "  Adv. Mater., 26, 7480, 2014

"Flexible Inorganic Piezoelectric Acoustic Nanosensor for Biomimetic Artificial Hair Cell" Adv. Func. Mater., 24, 6914, 2014

"Self-powered Fully-Flexible Light Emitting Systems enabled by Flexible Energy Harvester "  Energy Environ. Sci., 7, 4035, 2014

"Laser-Induced Solid Phase Doped Graphene" ACS Nano, 8, 7671, 2014

"Self-Powered Cardiac Pacemaker by Flexible Nanogenerator"  Adv. Mater. 26, 4880, 2014

"Flexible PZT Thin Film Nanogenerator using Laser Lift off" Adv. Mater. 26, 2514,2014

"Lead-Free Nanocomposite Generator Using Alkaline Niobate and Metal Nanorods Filler" Adv. Funct. Mater. 24, 2620, 2014

"Virus-Directed Design of a Flexible BaTiO3 Nanogenerator" ACS Nano, 7, 11016, 201

"Large-area Nanocomposite Generator based on Lead Zirconate Titanate", Adv. Energy Mater.  3, 1539, 2013

"In vivo Silicon Based Flexible RFICs Monolithically Encapsulated with LCP", ACS Nano, 7, 4545, 2013.

"Self-assembled BCP Incorporation in Phase-change Memory for Switching Power Reduction", ACS Nano, 7, 2651, 2013.

"Bendable Inorganic Thin-Film Battery for Fully Flexible Electronic Systems", Nano Letters, 12, 4810, 2012.  

"Flexible Nanocomposite Generator Made of BaTiO3 Nanoparticles and Graphitic Carbons", Adv. Mater., 24, 2999, 2012.

"Flexible Memristive Memory Array on Plastic Substrates", Nano Letters, 11, 5438, 2011

"Piezoelectric BaTiO3 Thin Film Nanogenerator on Plastic Substrates", Nano Letters, 10, 4939, 2010.

"Water-resistant Flexible GaN LED on LCP Substrate for Implantable Biomedical Applications", Nano Energy, 1, 145, 2012.

Representative Publications

(in UIUC)


"Heterogeneous Three Dimensional Electronics by Use of Printed Semiconductor Nanomaterials", Science, 314, 1754, 2006.

“Transfer Printing by Kinetic Control of Adhesion to a Soft, Elastomeric Stamp”, Nature Materials, 5, 33, 2006.

"Large Area, Selective Transfer of High Performance Si Transistors on Flexible Substrates", Adv. Mater., 17, 2336, 2005.

"Fabrication of Stable Metallic Patterns Embedded in PDMS for Non-Planar Electronics", Adv. Func. Mater., 15, 557, 2005.


Academic Committee


(학회 활동)

Adv. Mater. (Wiley, IF 27.4) 의 편집 고문 위원

2018 Chair of NGPT (International Conference of Nanogenerators and Piezotronics, Seoul Korea)

한국 재료학회 (Korean MRS) 이사       

대한 금속 재료학회 (Korean Institute of Metals and Materials) 학술위원   

대한 금속 재료학회  재료마당 편집위원  

한국 전기전자재료학회 (Korean Institute of Electrical and Electronic Material Engineers) 평의원 및 이사  

ICAE (International Conference on Advanced Electromaterials)  조직위원 & 이사

ENGE (International Conference on Electronic Materials and Nanotechnology for Green Environment) 조직 위원

한국 반도체학술대회 나노분과 위원

국가과학기술연구회 IoT 및 웨어러블 기기 융합클러스터 위원

Member of Material Research Society (미국 MRS 멤버)