Tuesday, August 4, 2009


대학원생 및 연구원 모집

울산과기원 (유니스트) FIND 실험실에서는 석박사통합과정, 박사과정 대학원생 혹은 연구원, 박사후 연구원을 모집하고 있습니다.
선발된 학생에게는 학위기간동안 장학금과 생활비가 지급됩니다. 재료공학, 물리학, 화학, 전자공학, 화학공학 전공의 학생이나 그외의 전공이라도 본 연구실에 관심이 있는 분은 언제든지 아래의 연락처로 연락하시기 바랍니다.

권순용 (교수, Professor)
울산과학기술원 (UNIST)
신소재공학과 (MSE)/ 반도체소재부품대학원 (SMDE), 미래반도체연구센터 (FUST)
Email: sykwon@unist.ac.kr
Tel: (office) +82-52-217-2312

· FIND leads in the design and synthesis/processing of frontier low-dimensional (0D,1D,2D) nanomaterials with atomic-level controllability to make innovative applications possible.

· Principal Investigator: Dr. Soon-Yong Kwon
· Postdoc:          Dr. Yeoseon Sim (Started from 2021.9)
· Ph.D. Course:     Mr. Jaewon Wang (Ms/Ph.D Combined) (Started from 2019.3)
                         Mr. Ju-Hyoung Han (Ms/Ph.D Combined) (Started from 2019.3)
                         Ms. Yujin Chae (Ph.D Course) (Started from 2021.3)
                                 Mr. Jihoon Yang (Ms/Ph.D Combined) (Started from 2020.3)    
                                    Mr. Young Ho Jin (Ms/Ph.D Combined) (Started from 2020.3)
                          Ms. Sora Jang (Ms/Ph.D Combined) (Started from 2020.9) 
                          Ms. Jaeeun Park (Ms/Ph.D Combined) (Started from 2021.3) 
                          Mr. Byeongjin Park (Ph.D Course) (Started from 2023.3) at KIMS
                                     Mr. Byeong Kyu Kim (Ms/Ph.D Combined) (Started from 2021.8) 
                          Mr. Hyeonwoo Lee (Ms/Ph.D Combined) (Started from 2022.3) 
                          Ms. Juwon Han (Ms/Ph.D Combined) (Started from 2022.3) 
                          Mr. Jaehong Im (Ms/Ph.D Combined) (Started from 2024.3) 
· Alumni:           Dr. Jinsung Kwak (2013.2, Ph.D) Currently at Changwon National University (Dept. Physics), Assistant Professor 
                         Dr. Jae-Kyung Choi (2015.8, Ph.D) Currently at Korea Institute of Science & Technology Information (KISTI), Senior Researcher 
                         Dr. Jae Hwan Chu (2016.2, Ph.D) Currently at Samsung Display, Researcher
                                            Dr. Hyung Duk Yun (2018.8, Ph.D) Currently at Samsung Electro-Mechanics, Researcher
                                Dr. Se-Yang Kim (2019.8, Ph.DCurrently at Samsung Electronics, Researcher
                         Dr. Yongsu Jo (2020.8. Ph.D) Currently at Samsung Electronics, Researcher 
                         Dr. Do Hee Lee (2020.8. Ph.D.)  Currently at SK Hynix, Researcher 
                  Dr. Yeoseon Sim (2021.8. Ph.D.)  Currently at UNIST, postdoc
                  Dr. Seunguk Song (2021.8. Ph.D.)  Currently at Univ. Pennsylvania, postdoc
                                   Dr. Shi-Hyun Seok (2023. 2. Ph.D.)  Currently at KIST, postdoc 
                         Mr. Tae-Yang Kwon (2014.2, Ms.) Currently at Poongsan Corporation, Researcher
                         Mr. Go-Myoung Bae (2015.2, Ms.) Currently at UNIST-UCRF, Researcher
                         Mr. Jong Hwa Lee (2017.2, Ms.) Currently at Applied Materials Korea, Researcher 
                                    Mr. IL John Jung (2023.2, Ms.)    
                          Mr. Haeng Un Yeo (2023.8, Ms.) Currently at Isu Petasys Co., Ltd., Researcher            
  FIND and use your passion at FIND-UNIST. Passion never rests!!  :-)

Monday, October 6, 2008

Research Interests

Research Areas:
- Compound Semiconductors/Optoelectronic Materials·Devices/Metal-Organic Chemical Vapor Deposition (MOCVD)
- 0D/1D/2D van der Waals (single/few-atomic-layer) Metals·Semiconductors·Insulators/Devices
- Phase Change Memory Materials, (Flexible) Electrode Materials

Research Keywords: Semiconductor, Epitaxy, Nanocoating, Thin Film Technology & Surface/Interface Science

"Semiconductor Epitaxy, van der Waals Epitaxy, Functional Nanocoating, Phase Change Memory Materials, 0D/1D/2D Functional Nanomaterials" for Potential Applications in Flexible Optoelectronics, Photovoltaics, and Environmental & Energy Devices

· Novel Synthesis and Applications of One-, Two-Dimensional van der Waals Atomic Crystals beyond Graphene, and Hybrid Systems with MOVPE-grown III-V & II-VI Compound Semiconductors for Flexible Optoelectronics, Photovoltaics, and Environmental & Energy Devices

· Low Temperature Engineering with Graphene and Related Low-Dimensional Nanomaterials for Multi-Functional Coatings and Interfaces in a Number of Graphene-Enhanced Products (e.g., Coating for hetero-epitaxy, for oxidation/corrosion/diffusion/gas barriers, for bio-scaffolds, for membranes etc.)

· Advanced III-V & II-VI Epitaxy (with reduced dimensionalities) on Si via Metal-Organic Chemical Vapor Deposition (MOCVD) for Advanced Optoelectronics/Photovoltaics and Flexible RBG & White Light Emitters


Seoul National University, Seoul, Korea (2005.8.)
Ph.D. degree in Materials Science and Engineering

· Thesis supervised by Professor Euijoon Yoon in the field of III-Nitride compound semiconductors
· Dissertation: Growth of In-rich InGaN/GaN quantum well structures using growth interruption and their structural and optical properties

Seoul National University, Seoul, Korea (2001.2.)
M.S. degree in Materials Science and Engineering
· Thesis supervised by Professor Euijoon Yoon in the field of III-Nitride compound semiconductors
· Dissertation: Analysis of structural and interfacial properties of AlGaN/GaN multi-quantum well (MQW)

Seoul National University, Seoul, Korea (1999.2.)
B.S. degree in Materials Science and Engineering

Work Experiences

Ulsan National Institute of Science and Technology (UNIST), Ulsan, Korea (2008.11.-present)
Full/Associate/Assistant Professor, Department of Materials Science and Engineering

Dean, Office of University-Industry Relations (2020.02.-present) 

University of Washington, Seattle, Washington 98105, USA (2015.7.-2016.7.)
Visiting Professor, Department of Physics

University of California at Los Angeles (UCLA), Los Angeles, California 90095, USA (2007.6.-2008.9.)
Postdoctoral Scholar, Department of Materials Science and Engineering

· Projects: Heteroepitaxial Graphene on Pd (111) and 6H-SiC (0001) by in-situ VT-STM and UHV-CVD
                Growth Studies of Sputter-Deposited GexSb1-x Thin Films for Memory Applications
· Work in Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign (UIUC)

Yale University, New Haven, Connecticut 06511, USA (2005.12.-2007.5.)
Postdoctoral Associate, Department of Electrical Engineering

· Project: AlGaInN Optoelectronics for White Lightening by MOCVD

Publications & Patents

1 Book Chapter on International Book on Optoelectronic Semiconductor Devices
Hyun Jin Kim, Soon-Yong Kwon, and Euijoon Yoon, “Chapter 6. Growth of nitride quantum dots”, Optoelectronic Devices: III-V Nitrides, edited by M. Henini and M. Razeghi, Elsevier (2004.12.).

More Than 100 International Refereed Journals on Applied Physics, Materials Science, and Semiconductors (selected) ( __: FINDers, ‡: equally contributed, *: corresponding author)
· J.-H. Han‡, S.-H. Seok‡, Y.H. JinJ. Park, Y. Lee, H.U. Yeo, J.-H. Back, Y. SimY. Chae, J. Wang, G.-Y. Oh, W. Lee, S.H. Park, I.-C. Bang, J.H. Kim, S.-Y. Kwon*, "Robust 2D layered MXene matrix - boron carbide hybrid films for neutron radiation shielding", Nature Communications 14, 6957 (2023).
- Highlighted in Media and Newspapers
- Included in Collection of 'Materials and devices for separation, sensing and protection' in Nature Communications
· Y. Jung‡, S.-H. Seok‡, K.-W. Jung, J. ParkS.-Y. Kwon*, J.-W. Choi*, "Nitrogen-doped titanium carbide (Ti3C2Tx) MXene nanosheet stack for long-term stability and efficacy in Au and Ag recovery", Small 19, 2305247 (2023).
- Featured as Journal Cover Article (Vol.19, Issue: 48)
· J. Yang, A. Yoon, D. Lee, S. Song, I. J. Jung, D.-H. Lim, H. Jeong, Z. Lee, M. Lanza, S.-Y. Kwon*, "Wafer-scale memristor array based on aligned grain boundaries of 2D molybdenum ditelluride for application to artificial synapses", Advanced Functional Materials online published, 2309455 (2023).
· S.-H. Seok‡, Y. Sim‡, J.-H. Han, Y.H. JinY. ChaeJ. ParkS.-Y. Kwon*, "Synthesis and processing of two-dimensional nitride MXenes for electrocatalysis and energy storage", Cell Reports Physical Science (Review) 4, 101582 (2023).
- Included in Collection of 'Cell Reports Physical Science Reviews and Perspectives'
· S. Song‡, A. Yoon‡, S. Jang‡, J. Lynch, J. Yang, J. Han, M. Choe, Y.H. Jin, Y. Chen, Y. Cheon, J. Kwak, C. Jeong, H. Cheong, D. Jariwala, Z. Lee*, S.-Y. Kwon*, "Fabrication of p-type 2D single-crystalline transistor arrays with Fermi-level-tuned van der Waals semimetal electrodes", Nature Communications 14, 4747 (2023).
- Highlighted in Media and Newspapers
· Y. Sim*, Y. ChaeS.-Y. Kwon*, "Recent advances in metallic transition metal dichalcogenides as electrocatalysts for hydrogen evolution reaction", iScience (Invited Review) 25, 105098 (2022).
· S. Song, A. Yoon, J.-K. Ha, J. Yang, S. Jang, C. Leblanc, J. WangY. Sim, D. Jariwala, S.-K. Min, Z. Lee*, S.-Y. Kwon*, "Atomic transistors based on seamless lateral metal-semiconductor junctions with a sub-1-nm transfer length", Nature Communications 13, 4916 (2022).
- Highlighted in Media and Newspapers
- Included in Collection of 'Top 25 Physics Articles of 2022' in Nature Communications
- Included in Collection of '2D materials research towards industrialisation' in Nature Communications
· S.-Y. Kwon*, "Integrating 2D materials and metal electrodes", Nature Electronics 5, 259-260 (2022).
- Invited News & Views in Nature Electronics
· Y. Sim‡, A. Yoon‡, H.S. Kang, J. Kwak, S.-Y. Kim, Y. Jo, D. Choe, W. Na, M.H. Lee, S.-D. Park, S. Song, D. Kim, J.-W. Yoo, S.Y. Kim, H. Cheong, J.S. Lee, C.-H. Lee*, Z. Lee*, S.-Y. Kwon*, "Design of two-dimensional layered catalyst by coherent heteroepitaxial conversion for robust hydrogen generation", Advanced Functional Materials 31, 2005449 (2021).
- Featured as Hot Topic in Wiley-VCH: Water Splitting
· S.-H. Seok, S. Choo, J. Kwak, H. Ju, J.-H. Han, W.-S. Kang, J. Lee, S.-Y. KimD.H. Lee, J. Lee, J. WangS. Song, W. Jo, B.M. Jung, H.G. Chae*, J.S. Son*, S.-Y. Kwon*, "Synthesis of high quality 2D carbide MXene flakes using a highly purified MAX precursor for ink applications", Nanoscale Advances 3, 517-527 (2021).
- Included in Nanoscale Advances Popular Advances Collection 2021 
· S. SongY. Sim, S.-Y. Kim, J. H. Kim, I. Oh, W. Na, D.H. LeeJ. Wang, S. Yan, Y. Liu, J. Kwak, J.-H. Chen, H. Cheong, J.-W. Yoo, Z. Lee, S.-Y. Kwon*, "Wafer-scale production of patterned transition metal ditelluride layers for two-dimensional metal-semiconductor contacts at the Schottky-Mott limit", Nature Electronics 3, 207-215 (2020).
- Featured in Nature Electronics 3, 187-188 (2020) (News & Views). 
- Highlighted in Media and Newspapers
· D.H. Lee‡, Y. Sim‡, J. Wang, S.-Y. Kwon*, "Metal-organic chemical vapor deposition of 2D van der Waals materials - The challenges and the extensive future opportunities", APL Materials (Invited Perspective) 8, 030901 (2020).
- Included in Special Collection of 'Moire Materials' 
· D.H. Lee, H.D. Yun, E.D. Jung, J.H. Chu, Y.S. Nam, S. SongS.-H. Seok, M.H. Song, S.-Y. Kwon*, "Ultrathin graphene intercalation in PEDOT:PSS/colorless polyimide-based  transparent electrodes for enhancement of optoelectronic performance and operational stability of organic devices", ACS Applied Materials & Interfaces 11, 21069-21077 (2019).
· S.-Y. Kim‡, J. Kwak‡, C. V. Ciobanu, S.-Y. Kwon*, "Recent developments in controlled vapor-phase growth of 2D group 6 transition metal dichalcogenides", Advanced Materials (Invited Review) 31, 1804939 (2019).
· J.H. Kim, S.-Y. Kim, Y. Cho, H.J. Park, H.-J. Shin, S.-Y. Kwon, Z. Lee*, "Interface-driven partial dislocation formation in 2D heterostructures", Advanced Materials 31, 1807486 (2019).
· S. SongS.-Y. KimJ. KwakY. Jo, J.H. Kim, J.H. Lee, J.-U. Lee, J.U. Kim, H.D. YunY, SimD.H. LeeS.-H. Seok, T.-I. Kim, H. Cheong, Z. Lee,  S.-Y. Kwon*, "Electrically robust single-crystalline WTe2 nanobelts for nanoscale electrical interconnects", Advanced Science 6, 1801370 (2019).
- Featured as Journal Frontpiece Article (Vol.6, Issue:3)
· S.-Y. Kim, J.H. Kim, S. Lee, J. KwakY. Jo, E. Yoon, G.-D. Lee, Z. Lee, S.-Y. Kwon*, "The impact of substrate surface defects on the properties of two-dimensional van der Waals heterostructures", Nanoscale 10, 19212-19219 (2018).
- Featured as Editor's Choice: van der Waals heterostructures
· J. Kwak*, S.-Y. KimY. Jo, N.Y. Kim, S.Y. Kim, Z. Lee, S.-Y. Kwon*, "Unraveling the water impermeability discrepancy in CVD-grown graphene", Advanced Materials 30,1800022 (2018).
- Featured as Journal Inside Front Cover Article (Vol.30, Issue:30)
- Highlighted in Media and Newspapers
· J. KwakY. JoS. Song, J.H. Kim, S.-Y. Kim, J.-U. Lee, S. Lee, J. Park, K. Kim, G.-D. Lee, J.-W. Yoo, S.Y. Kim, Y.-M. Kong, G.-H. Lee, W.-G. Lee, J. Park, X. Xu, H. Cheong, E. Yoon, Z. Lee*,  S.-Y. Kwon*, "Single-crystalline nanobelts composed of transition metal ditellurides", Advanced Materials 30,1707260 (2018).
- Highlighted in Media and Newspapers
· Y. Sim, J. Kwak*, S.-Y. Kim, Y. Jo, S. Kim, S.Y. Kim, J.-H. Kim, C.-S. Lee, J.H. Jo, S.-Y. Kwon*, "Formation of 3D graphene-Ni foam heterostructures with enhanced performance and durability for bipolar plates in a polymer electrolyte membrane fuel cell", Journal of Materials Chemistry A 6, 1504-1512 (2018).
· J. Kwak‡, Y. Jo‡, S.-D. Park‡, N.Y. Kim, S.-Y. Kim, H.-J. Shin, Z. Lee, S.Y. Kim*, S.-Y. Kwon*, "Oxidation behavior of graphene-coated copper at intrinsic graphene defects of different origins", Nature Communications  8, 1549 (2017).
- Highlighted in Media and Newspapers
· H.H. Yoon, S. Jung, G. CHoi, J. Kim, Y. Jeon, Y.S. Kim, H.Y. Jeong, K. Kim, S.-Y. Kwon, K. Park*, "Strong Fermi-level pinning at metal/n-Si(100) interface ensured by forming an intact Schottky contact with a graphene insertion layer", Nano Letters 17, 44 (2017).
- Highlighted in Media and Newspapers
· S.-Y. Kim‡,  J. Kwak‡,  J.H. Kim, J.-U. Lee, Y. Jo, S.Y. Kim, H. Cheong, Z. Lee, S.-Y. Kwon*, "Substantial improvements of long-term stability in encapsulation-free WS2 using highly interacting graphene substrate", 2D Materials  4, 011007 (2017).
· J.H. ChuD.H. Lee, J. Jo, S.Y. Kim, J.-W. Yoo*, S.-Y. Kwon*, "Highly conductive and environmentally stable organic transparent electrodes laminated with graphene", Advanced Functional Materials  26, 7234-7243 (2016).
- Featured as Journal Inside Back Cover Article (Vol.26, Issue:40)
· H. Seo, H.D. YunS.-Y. Kwon, I.C. Bang*, "Hybrid graphene and single-walled carbon nanotube films for enhanced phase-change heat transfer", Nano Letters 16, 932-938 (2016).
· J.-K. Choi, J. Kwak, S.-D. Park, H.D. Yun, S.-Y. Kim, M. Jung, S.Y. Kim, K. Park, S. Kang, S.-D. Kim, D.-Y. Park, D.-S. Lee, S.-K. Hong, H.-J. Shin*, S.-Y. Kwon*, "Growth of wrinkle-free graphene on texture-controlled platinum films and thermal-assisted transfer of large-scale patterned graphene", ACS Nano 9, 679-686 (2015).
- Highlighted in Media and Newspapers
· J.-H. Huh, S.H. Kim, J.H. Chu, S.Y. Kim, J.H. Kim*, S.-Y. Kwon*, "Enhancement of seawater corrosion resistance in copper using acetone-derived graphene coating", Nanoscale 6, 4379-4386 (2014).
· J.H. Chu J. Kwak, S.-D. Kim, M.J. Lee, J.J. Kim, S.-D. Park, J.-K. Choi, G.H. Ryu, K. Park, S.Y. Kim, J.H. Kim, Z. Lee, Y.-W. Kim, S.-Y. Kwon*, "Monolithic graphene oxide sheets with controllable composition", Nature Communications 5, 3383 (2014).
- Highlighted in Media and Newspapers
· D.T. Ho, S.-D. Park, S.-Y. Kwon, K. Park, S.Y. Kim*, "Negative Poisson's ratios in metal nanoplates", Nature Communications 5, 3255 (2014).
- Highlighted in Media and Newspapers
· J.-K. Choi, J.-H. Huh, S.-D. Kim, D. Moon, D. Yoon, K.S. Joo, J. Kwak, J.-H. Chu, S.Y. Kim, K. Park, Y.-W. Kim, E. Yoon, H. Cheong, S.-Y. Kwon*, "One-step graphene coating of heteroepitaxial GaN films", Nanotechnology 23, 435603 (2012).
 - Featured in Semiconductor Today 7(9), 74-75 (2012) etc.
· J.H. Chu, J. Kwak, T.-Y. Kwon, S.-D. Park, H. Go, S.Y. Kim, K. Park, S. Kang, S.-Y. Kwon*, "Facile synthesis of few-layer graphene with a controllable thickness using rapid thermal annealing", ACS Applied Materials & Interfaces 4, 1777-1782 (2012).
· J. Kwak, J.H. Chu, J.-K. Choi, S.-D. Park, H. Go, S.Y. Kim, K. Park, S.-D. Kim, Y.-W. Kim, E. Yoon, S. Kodambaka, S.-Y. Kwon*, "Near room-temperature synthesis of transfer-free graphene films", Nature Communications 3, 645 (2012).
  - Featured in Nature 483, S32-S33 (2012), Materials Research Society (MRS) News etc.
  - Press releases in Nature Communications (24 Jan 2012).
  - Highlighted in Media and Newspapers
· S.-Y. Kwon, C. V. Ciobanu*, V. Petrova, V. B. Shenoy, J. Bareno, V. Gambin, I. Petrov, S. Kodambaka*, "Growth of semiconducting graphene on palladium", Nano Letters 9, 3985-3990 (2009).
· S.-Y. Kwon, H. J. Kim, E. Yoon*, Y. Jang, K.-J. Yee, D. Lee, S.-H. Park, D.-Y. Park, H. Cheong, F. Rol, L. S. Dang, "Optical and microstructural studies of atomically flat ultrathin In-rich InGaN/GaN multiple quantum wells", Journal of Applied Physics 103, 063509 (2008).
· Z. Ren, Q. Sun, S.-Y. Kwon, J. Han*, K. Davitt, Y. K. Song, A. V. Nurmikko, H.-K. Cho, W. Liu, J. A. Smart, L. J. Schowalter, "Hetroepitaxy of AlGaN on bulk AlN substrates for deep ultraviolet light emitting diodes", Applied Physics Letters 91, 051116 (2007).
· S.-Y. Kwon, H. J. Kim, H. Na, Y.-W. Kim, H.-C. Seo, H. J. Kim, Y. Shin E. Yoon*, Y.-S. Park, "In-rich InGaN/GaN multiple quantum wells grown by metal-organic chemical vapor deposition", Journal of Applied Physics 99, 044906 (2006).
· S.-Y. Kwon, S.-I. Baik, Y.-W. Kim, H. J. Kim, D.-S. Ko, E. Yoon*, J.-W. Yoon, H. Cheong, Y.-S. Park, "Room temperature near-ultraviolet emission from In-rich InGaN/GaN multiple quantum wells", Applied Physics Letters 86, 192105 (2005).

More than 40 Patents (selected) (*: corresponding inventor)
· S.-Y. Kwon*, S.Y. Kim, K. Park. J. Kwak, J.H. Chu, J.-K. Choi, "Wrinkle-free graphene sheet, transparent electrode, active layer including the same, display, electronic device, optoelectronic device, battery, solar cell and dye-sensitized solar cell including the electrode or active layer", US registration number: 9385281 (2016.07.05), KR registration number: 10-1279990 (2013.06.24.), CN application number: 201180073584.X (2014.03.20.), EU application number: 11870060.8 (2014.02.13.), PCT application number: PCT/KR2011/005438 (2011.07.22.)
· S.-Y. Kwon*, K. Park, E. Yoon, J. Kwak, "Method for manufacturing graphene, transparent electrode and active layer comprising the same, and display, electronic device, optoelectronic device, battery, solar cell and dye-sensitized solar cell including the electrode and the active layer",  CN registration number: ZL201180013140.7 (2015.09.16.), KR registration number: 10-1251020 (2013.03.26.), US application number: 13/604,100 (2012.09.05),  EU application number: 11753537.7 (2012.10.08.), PCT application number: PCT/KR2011/001092 (2011.02.18.)

Courses Taught at UNIST (in English)
· Introduction to Materials Science and Engineering (2009 Spring, 2009 Fall, 2010 Spring (two sections), 2011 Spring, 2012 Fall, 2013 Fall, 2014 Spring, 2018 Spring, 2019 Spring, MSE202 for undergraduates)
· Thin Film Technology (2011 Fall, 2012 Winter, 2013 Winter, 2014 Fall, 2015 Spring, 2016 Fall, 2017 Spring, 2018 Spring, 2019 Fall, 2020 Spring, 2021 Spring, MSE351 for undergraduates)
· The Materials Science of Low-Dimensional Nanomaterials (2017 Fall, 2018 Fall, AMS49701 for undergraduates)
· Materials Laboratory (2013 Spring, 2014 Spring, 2015 Spring, 2020 Fall for undergraduates)
· Advanced Thin Film Technology (2009 Fall, 2010 Fall, AME501 for graduates)
· Light Emitting Diodes (2011 Spring, 2012 Fall, 2013 Fall, 2014 Fall, 2016 Fall, 2017 Fall, 2019 Spring AME531 for graduates)
· Outstanding Faculty Award, UNIST 2023
· Best Teaching Award, UNIST 2009
· Excellence in Teaching Award, UNIST MAME 2009

Community Services
· Dean, Office of University-Industry Relations, UNIST & CEO, UNIST Holdings (2020.2.-present)
· Director, Ulsan-Ulju Innotown Center, Ministry of Science & ICT (2021.1.-203.7.)
· Associate Editor (2020.7.-2022.7.), Editorial Advisory Board (2022.7.-present), iScience (Cell Press, Elsevier). 
· Track Coordinator, Advanced Materials Science (AMS) Track in School of Materials Science and Engineering, UNIST (2018.3.-2020.1.)
· Track Coordinator, Materials Science and Engineering (MSE) Track in School of Mechanical and Advanced Materials Engineering (MAME), UNIST (2011.3.-2014.3.)
· Technical Program Committee & Session Organizer (V. 2D van der Waals Materials: Graphene and beyond Graphene), The 1st & 2nd Global Conference on Innovation Materials (GCIM 2023 & 2024)
· Symposium Organizer (V. Two-Dimensional van der Waals Materials: Graphene and Beyond Graphene), The 22nd International Union of Materials Research Societies-International Conference in Asia (IUMRS-ICA 2021)
· Committee Member, The 6th International Conference on Electronic Materials and Nanotechnology for Green Environment (ENGE 2020)
· Vice-Chair, Technical Program Committee & Session Organizer (2D Materials), The 5th International Conference on Advanced Electromaterials (ICAE 2019)
· Sub-committee Chair (C. Materials Growth & Characterizations), The 26-28th Korean Conference on Semiconductors (KCS 2019-2021)
· Sub-committee Member (C. Materials Growth & Characterizations), The 19-30th Korean Conference on Semiconductors (KCS 2012-present)
· Session Organizer (2D Materials), The 1st, 2nd Korean Conference on LEDs and Optoelectronics (2018)
· Session Co-organizer (Optical Metamaterials & Novel Optical Materials(14th), Multifunctional Composites & Metamaterials(15th)), The 14-15th International Union of Materials Research Societies-International Conference on Advanced Materials (IUMRS-ICAM 2015-2016)
· Co-organizer, International Conference for Top and Emerging Materials Scientists (IC-TEMS 2014)
· Committee Member, The 16th International Conference on Metal-Organic Vapor Phase Epitaxy (ICMOVPE 2012)
· Session Co-organizer (Graphene and Carbon Nanomaterials), The 18th American Conference on Crystal Growth and Epitaxy (ACCGE 2011)
· Former Board Member of the Korean Ceramic Society
· Former Board Member of Korea Society of Optoelectronics
· Fellow of Korean Vacuum Society,
· Member of American Vacuum Society, Materials Research Society
· Member of Korean Institute of Metals and Materials, Korean Physical Society