• 연구실 : 팔달관707
• 연구실 전화 : 1680
• 이메일 : hakkiyu@ajou.ac.kr
• 연구관심분야 : 저차원 나노 재료 & 박막 X-선 회절 & 물리화학
• 홈페이지 : https://sites.google.com/site/hakkiyu/ , https://scholar.google.com/citations?user=fJ2jjbAAAAAJ&hl=en

• 2010.08 포항공과대학교 박사
• 2003.08 포항공과대학교 학사

-Visiting Scholar (09/2021 ~08/2022), Sabbatical year
Korea Institute of Science and Technology  (KIST, Seoul)
-Invited Professor (08/2017 ~ )
Samsung Institute of Technology (SSIT): Lecture for Introduction of Materials Science 1 & 2
-Postdoctoral Research Fellow (11/2011 ~ 02/2015)
[in English] Max Planck Institute for Bio-physical chemistry (Department of Dynamics at Surfaces) &
Georg August University of Goettingen (Institute for Physical Chemistry), Germany
*Research Areas: Synthesis of complex surfaces for molecular beam scattering experiments (Advisor: Prof. Alec M. Wodtke).

-Postdoctoral Research Fellow (09/2010 ~ 10/2011)
Pohang University of Science and Technology (POSTECH), Dept. of Materials Science and Engineering
*Research Areas: Fabrication of large area nano-structures and applications to optoelectronic devices (Advisor: Prof. Jong-Lam Lee).



-Editorial Committee  of Korean Journal of Metals and Materials
http://kim.or.kr/contents/sub01/04_2_2.asp

-Referees of 
Nano Energy, The Journal of Physical Chemistry Letters, 2D Materials, ChemSusChem, Electrochimica Acta, Journal of Colloid and Interface Science, ChemCatChem, Materials Today Energy, Crystal Growth & Design, Journal of Alloys and Compounds, Scientific Reports, International Journal of Hydrogen Energy, Journal of the American Ceramic Society, Ceramics International, Materialia, ACS Applied Nano Materials, New Journal of Chemistry, IEEE Access, RSC advances, Journal of the Electrochemical Society, Surface and Coatings Technology, International Journal of Energy Research, Journal of Composite Science, Optical Materials, Nanomaterials, Sensors, Chemosensors, Science of Advanced Materials, Thin Solid Films, Materials, Micromachines, Electronics, Current Applied Physics, Applied Sciences, Crystals, Coatings, Materials, Entropy, Photonics, Molecular Crystal and Liquid Crystals, Advances in Mechanical Engineering, Bulletin of the Korean Chemical Society, Journal of the Korean Physical Society, Electronic Materials Letters, Journal of Nanoscience and Nanotechnology, Journal of the Korean Ceramic Society, 한국 표면공학회지, 대한금속재료학회지, 한국 재료학회지, 공학기술논문지, etc.

-Reviewer board member of "Micromachines" 
https://www.mdpi.com/journal/micromachines/submission_reviewers 

-Guest editor of special issue: 2D Energy Materials in "Energies" 
https://www.mdpi.com/journal/energies/special_issues/2D_energy 

-대한금속재료학회 회원 & 융합분과 간사위원 (2015.03 ~ )
-대한금속재료학회지 편집위원 (2021.01~)
-한국재료학회 학술 분과 이사 (2019.01~2022.12.31)
-반도체 학술대회 P분과 (Device for energy) 공동 위원장 (2018.09~2021.02)
-한국세라믹학회 회원
-한국센서학회 회원
-GPVC (Global Photovoltaic Conference) 분과위원 (2017.03)
-제3기 국가나노기술지도 나노소재분과 분과위원 (2017.09~2018.02)


-한국산업기술진흥협회 NEP, NET 심사위원 (2015.05 ~ )
-산업기술혁신 평가단 평가위원 (2017.03 ~ )
-중소기업기술개발 지원사업 평가위원 (2017.08 ~ ) 
-SBDC 중소기업유통센터 공공 구매제도 평가위원 (2020.03 ~ )
-국방기술품질원 국방과학기술 평가위원 (2021.02 ~ )
-경기테크토파크(TP) 지원사업 전문인력 (2021.02 ~ )

1. Rational synthesis of nano-materials
-Graphene growth and applications
Growth of high quality graphene layer using CVD method and transfer process.
Making free-standing graphehe using TEM grid patterns.
Application of free-standing graphene for low energy electron scattering.
Application of free-standing graphene for He scattering and molecular beam scattering.
Application of free-standing graphene for bio-molecule imaging using Cryo-TEM.
-Large-area nano facet (MgO), nanorods & wires (MgO, ZnO, ITO, and In2O3)
Application to GaN-based high-power vertical-structure light emitting diodes (V-LEDs) &
Alq3 based organic light emitting diodes (OLEDs) for solid-state lightings.
Piezo-electronic devices such as haptic devices and energy harvesting devices.
Super-hydrophobic surfaces for self-cleaning devices.
-Nanomaterials for advanced catalysts and sensors (VO2, RuO2, SnO2, MoO2, WO2, TiO2, and ReO3)
Growth mechanism analysis of nanorods (VLS & non-VLS process).
Metal oxide nanowire with carbon complex for Li ion battery anode applications.
Mott-transition of VO2 in nano-structure and their application as sensors.
2. Epitaxial growth of close packed metal (Ag, Cu, Pt, Au etc) and oxide materials (MgO, TiN, ZnO etc) and their characterization
Domain matching epitaxy for the large lattice mismatch systems.
Buffer layers of functional oxide such as ferroelectrics and wurtzite semiconductors.
3. Solar cell electrode design for high efficiency
ITO nano-branches for high efficient organic solar cells (P3HT:PCBM solar cells).
MgO facet design for the Yablonovitch limit (a-Si and Si based solar cells).
Graphene as a flexible electrode of organic solar cells.
Surface plasmon for the advanced light absorption.
Design of distributed Bragg reflector (DBR) for total light absorption.
4. MgO based secondary electron emitters and Thermal energy storage systemn
Control of preferred orientation of polycrystalline MgO film.
Defect level control using excimer laser annealing.
Application to plasma display panels, electron multipliers, and mass spectrometers.

-Patent.
1. (Granted) 유학기, 이종람
"보호막 및 그 형성 방법" (대한민국, 등록번호: 10-0886828-0000).
2. (Granted) H. K. Yu, J. -L. Lee
"PASSIVATION FILM AND METHOD OF FORMING THE SAME" (WO2008054102).
3. (Granted) H. K. Yu, J. -L. Lee
"PASSIVATION FILM AND METHOD OF FORMING THE SAME" (US7915153).
4. (Granted) 손준호, 유학기, 이종람
“MgO 피라미드 구조를 갖는 발광소자 및 그 제조방법” (대한민국, 등록번호: 10-1165259-0000).
5. (Granted) J. H. Son, H. K. Yu, J. -L. Lee
“LIGHT-EMITTING DEVICE HAVING AN MGO PYRAMID STRUCTURE AND MANUFACTURING METHOD FOR SAME” (WO2012005459).
6. (Granted) J. H. Son, H. K. Yu, J. -L. Lee
“Light emitting device having MgO pyramid structure and method for fabricating the same” (US20130207074 A1).
7. (Granted) J. H. Son, H. K. Yu, J. -L. Lee
“Light emitting device having MgO pyramid structure and method for fabricating the same” (US20158993997 B2).
8. (Granted) 유학기, 이종람
“버퍼층을 이용한 실리콘 기판 위의 산화아연 박막 형성 방법” (대한민국, 등록번호: 10-1135928-0000).
9. (Granted) 손준호, 유학기, 이종람
“표면증강라만산란 분광용 기판 제작 방법” (대한민국, 등록번호: 10-1097205-0000).
10. (Granted) 유학기, 정관호, 동완재, 이종람
“태양전지용 기판 및 이의 제조방법” (대한민국, 등록번호: 10-1186560-0000).
11. (Granted) H. K. Yu, G. H. Jung, W. J. Dong, J. -L. Lee
“SUBSTRATE FOR SOLAR CELL AND METHOD FOR MANUFACTURING SAME” (WO2013006017).
12. (Granted) 유학기, 이종람
“전자선 증착장비를 이용한 인듐 주석 산화물 나노 막대 제조 방법” (대한민국, 등록번호: 10-1217786-0000).
13. (Granted) 송양희, 유학기, 이종람
“습식 식각형 버퍼층을 이용한 수직형 발광다이오드 제조 방법” (대한민국, 등록번호: 10-1238169-0000).
14. (Granted) 유학기, 이종람
“전자선 증착 장비를 이용한 산화아연 나노 막대 제조방법” (대한민국, 등록번호: 10-1243633-0000).
15. (Granted) 유학기, 이종람
“투명 전도성 플렉서블 기판 및 그 제조방법” (대한민국, 등록번호: 10-1272796-0000).
16. (Granted) 정관호, 유학기, 동완재, 함주영, 이종람
“도전성 플렉서블 기판 및 그 제조방법” (대한민국, 등록번호: 10-1284873-0000).
17. (Granted) 유학기, 동완재, 정관호, 이종람
“태양전지 소자 및 그 제조방법” (대한민국, 등록번호: 10-1295199-0000). Prime Minister Award (2nd prize), the 32th Korea Invention Patent Exhibition.
18. (Granted) H. K. Yu, W. J. Dong, G. H. Jung, J. -L. Lee
“SOLAR CELL ELEMENT AND MANUFACTURING METHOD FOR SAME” (WO2013006016). Prime Minister Award (2nd prize), the 32th Korea Invention Patent Exhibition.
19. (Granted) 김성준, 홍기현, 유학기, 이종람
“유기 발광 다이오드용 기판 및 이의 제조방법” (대한민국, 등록번호: 10-1317276-0000).
20. (Granted) H. K. Yu, A. M. Wodtke
“Graphene with very high charge carrier mobility and preparation thereof” (EP2801551 A1)
21. (Granted) H. K. Yu, A. M. Wodtke
“Graphene with very high charge carrier mobility and preparation thereof” (WO2014180919 A1)
22. (Revision) 손준호, 유학기, 이종람
“MgO 피라미드 구조를 갖는 발광소자 및 그 제조방법” (대한민국, 분할출원: 10-2011-0115338).

1. [논문] Tuqeer Nasir, 김범준, 이동규, 김관우, 김학철, 이상훈, 임형규, 정병주, 류학기, 최재영, Design of softened polystyrene for crack- and contamination-free large-area graphene transfer , NANOSCALE , pp.21865 -26870 (Oct, 2018)
2. [논문] 이동규, 김태수, 류학기, 최재영, Recrystallized NaCl from Thin Film to Nano-/Microsized Sacrificial Crystal for Metal Nanostructures , CRYSTAL GROWTH & DESIGN , Vol.18 , pp.5295 -5300 (Sep, 2018)
3. [논문] 이동규, 오세인, 김성주, 류학기, 이종람, 최재영, Water-Soluble Epitaxial NaCl Thin Film for Fabrication of Flexible Devices , SCIENTIFIC REPORTS , Vol.7 , pp.8716-1 -8716-7 (Aug, 2017)
4. [논문] 류학기, 이종람, Understanding of preferred orientation formation in rock-salt materials: The case of MgO , CRYSTAL GROWTH & DESIGN , Vol.16 , No.4 , pp.1978 -1983 (Apr, 2016)
5. [논문] 류학기, Claus Ropers, Janina Krieg, Kannan Balasubramanian , Klaus Kern, Manisankar Maiti , 김기수, 이종람, Alec M. Wodtke, Chemical vapor deposition of graphene on a "peeled-off" epitaxial Cu(111) foil: a simple approach to improved properties , ACS NANO , Vol.8 , No.8 , pp.8636 -8643 (Aug, 2014)

1. [논문] MEGERSA DABA DEME, GUDENA GUTEMA TESHOME, 김영호, 류학기, Chemical vapor deposition of RuRuSe2 catalyst for electrolytic hydrogen evolution reaction , ADVANCED SUSTAINABLE SYSTEMS , pp.23002571 -23002577 (Nov, 2023)
2. [논문] Ghulam Asghar, Xue Dong, Xiaojie Zhang, 강진수, 김영진, 방현석, 오형석, 우채헌, 유찬세, 전지호, 류학기, 최재영, Synthesis and characterization of porous forsterite (Mg2SiO4)-filled polystyrene composites , JOURNAL OF MATERIALS SCIENCE , pp.14714 -14722 (Sep, 2023)
3. [논문] 채수동, 류학기, Ghulam Asghar, Xue Dong, 구근호, 권혁진, 김태영, 안정윤, 오승배, 오형석, 우채헌, 전지호, 최경환, 김효원, 최재영, Vanadium Selenide Nanobelt Electrocatalyst for Dopamine-Selective Detection , ACS Applied Nano Materials , pp.16242 -16252 (Sep, 2023)
4. [논문] 이봄, 정병주, 이재현, Xiaojie Zhang, 강진수, 방현석, 오형석, 전지호, 조수헌, 최경환, 류학기, 최재영, Fabrication of Field-Effect Transistor based on 2D Novel Ternary Chalcogenide PdPS , ACS Applied Materials & Interfaces , pp.42891 -42899 (Sep, 2023)
5. [논문] 정병주, 조수헌, 이재현, 김범준, 오형석, 이봄, 이상훈, 전지호, 최경환, 류학기, 최재영, Two-Dimensional van der Waals Material PdPSe - Investigation on Electrical Transport , ACS Applied Electronic Materials , pp.4409 -4416 (Aug, 2023)
6. [논문] 배지권, 조현호, GUDENA GUTEMA TESHOME, MEGERSA DABA DEME, 고혜지, 김영호, 신호준, 이성주, 조인선, 채수동, 류학기, One-step synthesis of Bi2O2Se microstructures for trace oxygen gas sensor application , SENSORS AND ACTUATORS B-CHEMICAL , pp.1343981 -1343987 (Aug, 2023)
7. [논문] 김노을, 김영호, 이재현, 조인선, 형석기, 배종성, 이상훈, 이재영, 류학기, 김수영, 최재영, Enhanced Ultra High Frequency EMI Shielding with Controlled Width ITO Nano-Branches via Different Tin Material Type , Nanoscale , pp.13635 -13644 (Jul, 2023)
8. [논문] 조현호, 이상훈, 김다훈, 류학기, 박재혁, 최재영, Fabrication of UV-C photodetector with ultimate stability in extreme space environments (radiation, low temperature) using aerosol-deposited Ga2O3 , Ceramics International , pp.30375 -30380 (Jun, 2023)
9. [논문] 이봄, 정병주, Soheil Ghods, 김승일, 류학기, 김범준, 성동철, 이상훈, 이준호, 전지호, 조수헌, 최경환, 허준석, 이재현, 최재영, Controlled bipolar doping of one-dimensional van der Waals Nb2Pd3Se8 , NANO LETTERS , pp.6269 -6275 (Apr, 2023)
10. [논문] MEGERSA DABA DEME, 조현호, GUDENA GUTEMA TESHOME, 김영호, 배종성, 이재영, 채수동, 류학기, Position-Selective Growth of WO3 Nanosheets for NH3 Gas Sensors , CRYSTAL GROWTH & DESIGN , pp.3447 -3454 (Apr, 2023)
11. [논문] 곽건호, 김선우, 정유석, Ya Yang, 김진겸, 김희준, 송경근, 최원준, 최지혁, 류학기, 백정민, 송현철, Hybrid photothermal structure based on Cr-MgF2 solar absorberPMMA-graphene heat reservoir for thermoelectric power generation , Nano Energy , pp.1083521 -10835210 (Mar, 2023)
12. [논문] Ghulam Asghar, Xue Dong, Xiaojie Zhang, 김태영, 안정윤, 오형석, 우채헌, 유찬세, 전지호, 채수동, 최재영, 류학기, Dielectric properties of low-temperature sintered forsterite (Mg2SiO4) using high-dispersion and nanoparticle-based solid-state reaction process , MATERIALS LETTERS , pp.1340091 -1340094 (Feb, 2023)
13. [논문] 조현호, 장한얼, 류학기, 박재혁, 최재영, Synthesis of polycrystalline gallium oxide solar-blind ultraviolet photodetector by Aerosol Deposition , Journal of the European Ceramic Society , pp.2534 -2540 (Jan, 2023)
14. [논문] 이상훈, 정병주, 조현호, 김범준, 오형석, 이봄, 장한얼, 전지호, 조수헌, 최경환, 류학기, 최재영, CVD Growth of a Horizontally Aligned One-Dimensional Van der Waals Material, Nb2Se9 , CRYSTAL GROWTH & DESIGN , pp.946 -953 (Jan, 2023)
15. [논문] 조현호, 김민경, 류학기, 김명화, Single phase ZnV2O6 nanorods with excellent visible light photodetection capability , Journal of Alloys and Compounds , pp.1686761 -1686767 (Jan, 2023)
16. [논문] 김노을, 김영호, 조현호, 황종국, 류학기, 최재영, Formation of palladium nano-gap on self-crackedWO3 for hydrogen gas sensors , INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , pp.1 -6 (Jan, 2023)
17. [논문] Ghulam Asghar, Xue Dong, 김태영, 안정윤, 오승배, 오형석, 우채헌, 유찬세, 전지호, 채수동, 최경환, 류학기, 최재영, Synthesis of hollow forsterite by coating method and study of its dielectric properties , CERAMICS INTERNATIONAL , pp.1 -5 (Jan, 2023)
18. [논문] GUDENA GUTEMA TESHOME, 조현호, MEGERSA DABA DEME, 배종성, 이재영, 류학기, Single-step growth of MoO3 nanorods via magnetron sputtering , CRYSTENGCOMM , pp.1 -7 (Dec, 2022)
19. [논문] 우채헌, 전지호, Xiaojie Zhang, Xue Dong, 강진수, 김태영, 안정윤, 오형석, 정병주, 최경환, 류학기, 최재영, Synthesis and polymorphism of a new phase 1D chalcogenide M2N3X8 structure based on the periodic table Ta2Ni3S8 with a tetragonal structure , JOURNAL OF ALLOYS AND COMPOUNDS , pp.1667521 -1667526 (Dec, 2022)
20. [논문] Ghulam Asghar, Xue Dong, Shahid Saqlain, 김태영, 박재혁, 안정윤, 오승배, 오형석, 우채헌, 전지호, 채수동, 최경환, 류학기, 최재영, Synthesis of TiO2 Nanoparticle-Embedded SiO2 Microspheres for UV Protection Applications , CRYSTAL GROWTH & DESIGN , pp.1 -7 (Nov, 2022)
21. [논문] 김태영, 우채헌, Xiaojie Zhang, Xue Dong, 강진수, 안정윤, 오형석, 전지호, 최경환, 류학기, 최재영, Colloidal synthesis of 1-D van der Waals materialNb2Se9: study of synergism of coordinating agent in a co-solvent system , Nanoscale , pp.1 -8 (Nov, 2022)
22. [논문] 정병주, 조수헌, 이재현, 김범준, 오형석, 이봄, 이상훈, 전지호, 최경환, 류학기, 최재영, Novel High Current Carrying Quasi-1D Material: Nb2PdS6 , SMALL , pp.22053441 -22053448 (Nov, 2022)
23. [논문] 조수헌, 최경환, 이재현, Xiaojie Zhang, 강진수, 오형석, 이봄, 전지호, 정병주, 류학기, 최재영, One-Dimensional van der Waals Material InSeI with Large Band-gap for Optoelectronic Applications , JOURNAL OF ALLOYS AND COMPOUNDS , pp.1669951 -1669957 (Sep, 2022)
24. [논문] 김영호, Xue Dong, 채수동, Ghulam Asghar, 최성웅, 류학기, 김범준, 최재영, Ultrahigh‐Porosity MgO Microparticles for Heat‐Energy Storage , ADVANCED MATERIALS , pp.22047751 -22047759 (Jul, 2022)
25. [논문] 이봄, 이상훈, 이재현, 조현호, 김범준, 박재혁, 장한얼, 정병주, 조수헌, 류학기, 최재영, Liquid precursor assisted chemical vapor deposition of 1-D van der Waals materials Nb2Se9 , ACS SENSORS , pp.1912 -1918 (Jun, 2022)
26. [논문] 전지호, 최경환, 이재현, 김태영, 안정윤, 오승배, 우채헌, 정병주, 채수동, 류학기, 최재영, 1D van der Waals Nb2Pd3Se8‐Based n‐Type Field‐Effect Transistors Prepared by Liquid , ADVANCED MATERIALS INTERFACES , pp.22006201 -22006208 (Jun, 2022)
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81. [논문] 오승배, 채수동, 이동규, Yasmin Hussain, 김범준, 김영민, 장우성, 장지민, 최경환, 류학기, 최재영, Synthesis of a one-dimensional atomic crystal of vanadium selenide (V2Se9) , RSC ADVANCES , pp.33980 -33984 (Oct, 2018)
82. [논문] 이아람, 류학기, 최재영, Mimicking of five human senses using nanostructured ZnO single material , NANOTECHNOLOGY , Vol.29 , No.47 , pp.475501 -475501 (Sep, 2018)
83. [논문] Le Thai Duy, 이규연, 김진서, 류학기, 안병민, 조인선, 서형탁, Improving p-to-n transition and detection range of bimodal hydrogen sensitive nanohybrids of hole-doped rGO and chemochromic Pd-decorated-MoO3 nanoflakes , JOURNAL OF ALLOYS AND COMPOUNDS , Vol.774 , pp.111 -121 (Sep, 2018)
84. [논문] 신호준, 이재영, 류학기, 최재영, Suppressing Grain Growth on Cu Foil Using Graphene , COATINGS , pp.334 -334 (Sep, 2018)
85. [논문] 김범준, 정병주, 류학기, 문지윤, Tuqeer Nasir, 김관우, 오승배, 이상훈, 임형규, 채수동, 최경환, 최익준, 이재현, 최재영, Exfoliation and Characterization of V2Se9 Atomic Crystals , NANOMATERIALS , pp.737 -737 (Sep, 2018)
86. [논문] 이동규, 김태수, 류학기, 최재영, Recrystallized NaCl from Thin Film to Nano-/Microsized Sacrificial Crystal for Metal Nanostructures , CRYSTAL GROWTH & DESIGN , Vol.18 , pp.5295 -5300 (Sep, 2018)
87. [논문] 김관우, 김범준, 류학기, 이재영, Tuqeer Nasir, 이상훈, 임형규, 정병주, 최익준, 최재영, Triangular radial Nb2O5 nanorod growth on c-plane sapphire for ultraviolet-radiation detection , RSC ADVANCES , pp.31066 -31070 (Sep, 2018)
88. [논문] 류학기, 오민석, 오민철, 이재현, 정상현, 안병민, Quantitative analysis of cryomilled nanocrystalline Ti-6Al-4V alloy powder by X-ray diffraction , ARCHIVES OF METALLURGY AND MATERIALS , Vol.63 , No.3 , pp.1439 -1442 (Sep, 2018)
89. [논문] 홍기현, 김영호, 류학기, 김기수, 김성준, 이일환, 이종람, Flexible top-emitting organic light emitting diodes with a functional dielectric reflector on a metal foil substrate , RSC ADVANCES , Vol.8 , pp.26156 -26160 (Jul, 2018)
90. [논문] G. Anemone, 류학기, A. Al Taleb, A. De Andr
    es, A. M. Wodtke, C. Prieto, E. Climent-Pascual, F. Jim
    enez-Villacorta, Daniel Farias, A simple means of producing highly transparent graphene on sapphire using chemical vapor deposition on a copper catalyst , CARBON , Vol.139 , pp.593 -598 (Jul, 2018)
91. [논문] 민경찬, 오세인, 이동규, 전욱진, 이주한, 최경순, 류학기, 최재영, Hierarchical Ag nanostructures on Sn-doped indium oxide nano-branches: Super-hydrophobic surface for surface-enhanced Raman scattering , RSC ADVANCES , Vol.8 , pp.12927 -12927 (Apr, 2018)
92. [논문] 류학기, Secondary electron emission properties of Zn doped MgO thin films grown via electron-beam evaporation , THIN SOLID FILMS , Vol.653 , pp.57 -61 (Mar, 2018)
93. [논문] 김빛나, 서갑경, 류학기, 서형탁, 안병민, 황성원, 조인선, Photophysical properties and photoelectrochemical performances of sol-gel derived copper stannate (CuSnO3) amorphous semiconductor for solar water splitting application , CERAMICS INTERNATIONAL , Vol.44 , No.2 , pp.1843 -1849 (Feb, 2018)
94. [논문] 민경찬, 김영호, 전욱진, 류학기, 최재영, Spontaneous nano-gap formation in Ag film using NaCl sacrificial layer for Raman enhancement , NANOTECHNOLOGY , Vol.29 , No.10 , pp.105502 -105509 (Jan, 2018)
95. [논문] A. Politano, 류학기, D. Farias, G. Chiarello, Multiple acoustic surface plasmons in graphene/Cu(111) contacts , PHYSICAL REVIEW B , Vol.97 , No.3 , pp.035414-1 -035414-7 (Jan, 2018)
96. [논문] 이신영, 이재영, 류학기, Contamination-free graphene transfer from Cu-foil and Cu-thin-filmsapphire , COATINGS , pp.218 -218 (Dec, 2017)
97. [논문] 유일한, Shankara S. Kalanur, 류학기, 안병민, 엄기령, 조인선, 전형탁, 서형탁, Plasmon-enhanced ZnO nanorod/Au NPs/Cu2O structure solar cells: Effects and limitations , KOREAN JOURNAL OF CHEMICAL ENGINEERING , Vol.34 , No.12 , pp.3200 -3207 (Dec, 2017)
98. [논문] 이아람, 최경순, 김태수, 박진헌, 이주한, 류학기, 최재영, Graphene growth controlled by the position and number of layers (n = 0, 1, and more than 2) using Ni and MgO patterned ultra-flat Cu foil , RSC ADVANCES , Vol.82 , pp.52187 -52191 (Nov, 2017)
99. [논문] 황성원, 노태훈, 김진운, 류학기, 서형탁, 안병민, 조인선, 김동욱, Optical properties and visible light-induced photocatalytic activity of bismuth sillenites (Bi12XO20, X = Si, Ge, Ti) , CERAMICS INTERNATIONAL , Vol.43 , No.15 , pp.12102 -12108 (Oct, 2017)
100. [논문] Nilesh K. Shrivastava, 김범준, Mudusu Devika, Tuqeer Nasir, 김관우, 김학철, 이상훈, 이주한, 정병주, 최경순, 류학기, 최재영, Poly-Trimethoxyphenylsilane for carrier-film of residual-free CVD-graphene transfer , PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS , Vol.11 , pp.17002401 -17002404 (Oct, 2017)
101. [논문] 이아람, 박진헌, 서형탁, 안병민, 유일한, 조인선, 이주한, 최경순, 류학기, 최재영, Position-selective metal oxide nano-structures using graphene catalyst for gas sensors , CARBON , Vol.125 , pp.221 -226 (Sep, 2017)
102. [논문] 이동규, 오세인, 김성주, 류학기, 이종람, 최재영, Water-Soluble Epitaxial NaCl Thin Film for Fabrication of Flexible Devices , SCIENTIFIC REPORTS , Vol.7 , pp.8716-1 -8716-7 (Aug, 2017)
103. [논문] 류학기, 김세아, 윤석현, 김명화, 이남석, Growth of two-dimensional rhenium disulfide (ReS2) nanosheets with a few layers at low temperature , CRYSTENGCOMM , Vol.19 , No.36 , pp.5341 -5345 (Aug, 2017)
104. [논문] 김현영, 천승희, 류학기, 이남석, 이영미, 이예정, 장혜수, 조아라, 김명화, 이정목, A facile growth process of highly single crystalline Ir1?xVxO2 mixed metal oxide nanorods and their electrochemical properties , CRYSTENGCOMM , Vol.19 , No.25 , pp.3455 -3464 (Jun, 2017)
105. [논문] A. Politano, 류학기, D. Borka, D. Farias, I. Radovic, Z.L. Miscovic, G. Chiarello, Dispersion and damping of the interband π plasmon in graphene grown on Cu(111) foils , CARBON , Vol.114 , pp.70 -76 (Apr, 2017)
106. [논문] 이상연, 김진서, 류학기, 안병민, 조인선, 서형탁, Photochemical Tuning of Ultrathin TiO2/p-Si p-n Junction Properties via UV-Induced H Doping , ELECTRONIC MATERIALS LETTERS , Vol.13 , No.2 , pp.107 -113 (Mar, 2017)
107. [논문] 이아람, 김건영, 서형탁, 안병민, 유선종, 조인선, 류학기, Growth of ZnO thin film on graphene transferred Si (100) substrate , THIN SOLID FILMS , Vol.619 , pp.68 -72 (Oct, 2016)
108. [논문] 류학기, Copper micro-labyrinth with graphene skin: New transparent flexible electrodes with ultimate low sheet resistivity and superior stability , NANOMATERIALS , Vol.6 , pp.161 -167 (Sep, 2016)
109. [논문] 이아람, 이재영, 류학기, Graphene protected Ag nanowires: Blocking of surface migration for thermally stable and wide-range-wavelength transparent flexible electrodes , RSC ADVANCES , Vol.6 , pp.84985 -84989 (Sep, 2016)
110. [논문] Martin Wenderoth, Philip Willke, 류학기, Alec Wodtke, Anna Sinterhauf, Christian Moehle, Thomas Kotzott, Local transport measurements in Graphene on SiO2 using Kelvin Probe Force Microscopy , CARBON , Vol.102 , pp.470 -476 (Jun, 2016)
111. [논문] 류학기, 이종람, Understanding of preferred orientation formation in rock-salt materials: The case of MgO , CRYSTAL GROWTH & DESIGN , Vol.16 , No.4 , pp.1978 -1983 (Apr, 2016)
112. [논문] Laura Zuccaro, 류학기, Alexander Kuhn, Klaus Kern, Mitsuharu Konuma, Kannan Balasubramanian, Selective functionalization of graphene peripheries by using bipolar electrochemistry , CHEMELECTROCHEM , Vol.3 , No.3 , pp.372 -377 (Mar, 2016)
113. [논문] 함주영, 류학기, 동완재, 박재용, 정관호, 이종람, Antireflective Indium-Tin-Oxide Nanobranches for Efficient Organic Solar Cells , APPLIED PHYSICS LETTERS , Vol.108 , pp.073903-1 -073903-5 (Feb, 2016)
114. [논문] Gloria Anemone, 류학기, Alec Wodtke, Alicia De Andres, Amjad Al Taleb, Carlos Prieto, Esteban Climent-Pascual, Felx Jimenez-Villacorta, Daniel Farias, Quality of graphene on sapphire: long-range order from helium diffraction versus lattice defects from Raman spectroscopy , RSC ADVANCES , Vol.6 , No.25 , pp.21235 -21245 (Feb, 2016)
115. [논문] Laura Zuccaro, 류학기, Alessandro Desideri, Birgitta R Knudsen, Cinzia Tesauro, Kannan Balasubramanian, Klaus Kern, Paola Fiorani, Tetiana Kurkina, Real-Time Label-Free Direct Electronic Monitoring of Topoisomerase Enzyme Binding Kinetics on Graphene , ACS NANO , Vol.9 , No.11 , pp.11166 -11176 (Nov, 2015)
116. [논문] 류학기, Amjad Al Taleb, Gloria Anemone, Alec M. Wodtke, Daniel Far?as, Helium diffraction and acoustic phonons of graphene grown on copper foil , CARBON , Vol.95 , pp.731 -737 (Sep, 2015)
117. [논문] 류학기, Effective Reduction of Copper Surface for Clean Graphene Growth , JOURNAL OF THE ELECTROCHEMICAL SOCIETY , Vol.162 , No.12 , pp.E277 -E281 (Sep, 2015)
118. [논문] Rodrigo M Iost, 류학기, Alec M. Wodtke, Frank N. Crespilho, Klaus Kern, Laura Zuccaro, Kannan Balasubramanian, Enhancing the Electrochemical and Electronic Performance of CVD-Grown Graphene by Minimizing Trace Metal Impurities , CHEMELECTROCHEM , Vol.1 , No.12 , pp.2070 -2074 (Dec, 2014)
119. [논문] 류학기, 이종람, Growth mechanism of metal-oxide nanowires synthesized by electron beam evaporation: A self-catalytic vapor-liquid-solid process , SCIENTIFIC REPORTS , Vol.4 , pp.6589-1 -6589-8 (Oct, 2014)
120. [논문] 신해영, 류학기, 백정민, 이유민, 이재연, 정세원, 정하영, 김명화, 윤석현, Probing the Growth Habit of Highly Single Crystalline Twinned V-Shape RuO2 Nanowires by Polarized Raman Scattering , JOURNAL OF PHYSICAL CHEMISTRY C , Vol.118 , No.35 , pp.20716 -20720 (Sep, 2014)
121. [논문] 류학기, Claus Ropers, Janina Krieg, Kannan Balasubramanian , Klaus Kern, Manisankar Maiti , 김기수, 이종람, Alec M. Wodtke, Chemical vapor deposition of graphene on a "peeled-off" epitaxial Cu(111) foil: a simple approach to improved properties , ACS NANO , Vol.8 , No.8 , pp.8636 -8643 (Aug, 2014)
122. [논문] Max Gulde, 류학기, Alec M. Wodtke, Gero Storeck, Manisankar Maiti, Sascha Sch?fer, Simon Schweda, Claus Ropers, Ultrafast low-energy electron diffraction in transmission resolves polymer/graphene superstructure dynamics , SCIENCE , Vol.345 , No.6193 , pp.200 -204 (Jul, 2014)
123. [논문] 류학기, 이종람, Effect of ion beam assisted deposition on the growth of indium tin oxide (ITO) nanowires , CRYSTENGCOMM , Vol.16 , No.20 , pp.4108 -4112 (May, 2014)
124. [논문] 류학기, 구본형, 김성준, 이보라, 정관호, 함주영, 이종람, Nano-branched transparent conducting oxides: beyond the brittleness limit for flexible electrode applications , NANOSCALE , Vol.4 , No.21 , pp.6831 -6834 (Nov, 2012)
125. [논문] 예병욱, 류학기, 김명화, 김범준, 손준호, 송양희, 백정민, 이종람, Enhancing Light Emission of Nanostructured Vertical Light-Emitting Diodes by Minimizing Total Internal Reflection , ADVANCED FUNCTIONAL MATERIALS , Vol.22 , No.3 , pp.632 -639 (Feb, 2012)
126. [논문] 김성준, 류학기, 김경보, 김기수, 김태엽, 손준호, 이일환, 홍기현, 이종람, MgO nano-facet embedded silver-based dielectric/metal/dielectric transparent electrode , OPTICS EXPRESS , Vol.20 , No.2 , pp.845 -853 (Jan, 2012)
127. [논문] 송양희, 류학기, 김범준, 손준호, 유철종, 이종람, Effects of W diffusion barrier on inhibition of AlN formation in Ti/W/Al ohmic contacts on N-face n-GaN , APPLIED PHYSICS LETTERS , Vol.99 , No.23 , pp.233502-1 -233502-3 (Dec, 2011)
128. [논문] 류학기, 백정민, 이종람, Self-Connected and Habitually Tilted Piezoelectric Nanorod Array , ACS NANO , Vol.5 , No.11 , pp.8828 -8833 (Nov, 2011)
129. [논문] 손준호, 류학기, 김범준, 송양희, 이종람, Design of Epitaxially Strained Ag Film for Durable Ag-Based Contact to p-Type GaN , CRYSTAL GROWTH & DESIGN , Vol.11 , No.11 , pp.4943 -4949 (Nov, 2011)
130. [논문] 류학기, 동완재, 정관호, 이종람, Three-Dimensional Nanobranched Indium?Tin-Oxide Anode for Organic Solar Cells , ACS NANO , Vol.5 , No.10 , pp.8026 -8032 (Oct, 2011)
131. [논문] 류학기, 구본웅, 김영운, 김웅권, 김재성, 류재화, 박응철, 이종람, Enhanced Secondary Electron Emission in Nanoscale Thin Metal Containing MgO Film: Laser Irradiation on Creation of F Centers , JOURNAL OF PHYSICAL CHEMISTRY C , Vol.115 , No.36 , pp.17910 -17914 (Sep, 2011)
132. [논문] 송양희, 류학기, 손준호, 이정용, 이주호, 정관호, 이종람, Domain Matching Epitaxy of Mg-Containing Ag Contact on p-Type GaN , CRYSTAL GROWTH & DESIGN , Vol.11 , No.6 , pp.2559 -2563 (Jun, 2011)
133. [논문] 류학기, 백정민, 이종람, Design of an Interfacial Layer to Block Chemical Reaction for Epitaxial ZnO Growth on a Si Substrate , CRYSTAL GROWTH & DESIGN , Vol.11 , No.6 , pp.2438 -2443 (Jun, 2011)
134. [논문] 예병욱, 류학기, 김명화, 백정민, 이종람, Modulating ZnO nanostructure arrays on any substrates by nanolevel structure control , JOURNAL OF PHYSICAL CHEMISTRY C , Vol.115 , No.16 , pp.7987 -7992 (May, 2011)
135. [논문] 이유민, 류학기, 예병욱, 이종람, 김명화, 백정민, Facile synthesis of single crystalline metallic RuO2 nanowires and electromigration-induced transport properties , JOURNAL OF PHYSICAL CHEMISTRY C , Vol.115 , No.11 , pp.4611 -4615 (Mar, 2011)
136. [논문] 명동신, 류학기, 김웅, 백정민, 이유민, 이재연, 이종람, 김명화, Synthesis of metallic ReO3 nanowires , PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS , Vol.4 , No.12 , pp.365 -367 (Dec, 2010)
137. [논문] 류학기, 이종람, Growth mechanism of MgO film on Si (100): Domain matching epitaxy, strain relaxation, preferred orientation formation , CRYSTAL GROWTH & DESIGN , Vol.10 , No.12 , pp.5200 -5204 (Dec, 2010)
138. [논문] 류학기, 홍기현, 김기수, 김성준, 이일환, 이종람, Enhanced Light Out-Coupling of Organic Light-Emitting Diodes: Spontaneously Formed Nanofacet-Structured MgO as a Refractive Index Modulation Layer , ADVANCED MATERIALS , Vol.22 , No.43 , pp.4890 -4894 (Nov, 2010)
139. [논문] 류학기, 손준호, 이종람, MgO nano-pyramids structure for enhancement of light extraction efficiency in vertical light-emitting diodes , OPTICS EXPRESS , Vol.18 , No.103 , pp.A403 -A410 (Sep, 2010)
140. [논문] 장호원, 류학기, 류성욱, 이상한, 이종람, The role of reflective p-contacts in the enhancement of light extraction in nanotextured vertical InGaN light-emitting diodes , NANOTECHNOLOGY , Vol.21 , No.2 , pp.025203-1 -025203-5 (Jan, 2010)
141. [논문] 손준호, 류학기, 송양희, 이종람, Effects of Ni cladding layers on suppression of Ag agglomeration in Ag-based Ohmic contacts on p-GaN , APPLIED PHYSICS LETTERS , Vol.95 , No.6 , pp.062108-1 -062108-3 (Aug, 2009)
142. [논문] 류학기, 김웅권, 김재성, 류재화, 박응철, 이종람, Degradation Mechanism of Secondary Electron Emission in Plasma-Exposed MgO Films , JAPANESE JOURNAL OF APPLIED PHYSICS , Vol.45 , No.7R , pp.076003-1 -076003-3 (Jul, 2009)
143. [논문] 손준호, 류학기, 송양희, 이종람, Low Resistance and Themarlly Stable Ohmic Contact on p-type GaN Using a RuO2 Diffusion Barrier , ELECTRONIC MATERIALS LETTERS , Vol.4 , No.4 , pp.157 -160 (Oct, 2008)
144. [논문] 김수영, 류학기, 김기수, 김웅권, 홍기현, 이종람, Effect of N 2, Ar, and O 2 plasma treatments on surface properties of metals , JOURNAL OF APPLIED PHYSICS , Vol.103 , No.7 , pp.076101-1 -076101-3 (Apr, 2008)
145. [논문] 김수영, 류학기, 백정민, 이종람, Highly efficient organic light-emitting diodes with hole injection layer of transition metal oxides , JOURNAL OF APPLIED PHYSICS , Vol.98 , No.9 , pp.093707-1 -093707-7 (Nov, 2005)
146. [논문] 김수영, 류학기, 김광영, 백정민, 탁윤흥, 이종람, Rhodium-oxide-coated indium tin oxide for enhancement of hole injection in organic light emitting diodes , APPLIED PHYSICS LETTERS , Vol.87 , No.7 , pp.072105-1 -072105-3 (Aug, 2005)
147. [논문] 장호원, 류학기, 김수영, 김종규, 이종람, Ohmic contacts for high power LEDs , PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE , Vol.201 , No.12 , pp.2831 -2836 (Sep, 2004)

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