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장혜정 교수

Hye Jung Chang

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  • 소속캠퍼스한국과학기술연구원 스쿨
  • 전공 나노-정보 융합
    (나노재료공학)
  • 연락처02-958-5365
  • 출신전공재료공학과
  • 학위박사
  • 최종출신대학연세대학교
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연구분야

전자현미경을 이용한 나노재료의 미세구조분석

Microstructural analysis of nano materials using electron microscopy

대표연구실적

-  Joohwi Lee, Jong Kwon Choi, Seon Young Moon, Jaehong Park, Jin-Sang Kim, Cheol Seong Hwang, Seung-Hyub Baek, Jung-Hae Choi, Hye Jung Chang, “Symmetry-dependent interfacial reconstructionto compensate polar discontinuity at perovskite oxide interfaces (LaAlO3/SrTiO3,LaAlO3/CaTiO3)” Appl. Phys. Lett. (2015) -  H.J. Chang, S.V. Kalinin, A.N. Morozovska, M. Huijben, Y.H. Chu, P. Yu, R. Ramesh, E.A. Eliseev, G.S. Svechnikov, S.J. Pennycook, A. Borisevich, “Atomically-resolved mapping of polarization and electric fields across ferroelectric-oxide interfaces by Z-contrast imaging” Adv. Mater. (2011) -  Kwang-Chon Kim, Joohwi Lee, Byung Kyu Kim, Won Young Choi, Hye Jung Chang, Sung Ok Won, Beomjin Kwon, Seong Keun Kim, Dow-Bin Hyun, Hyun Jae Kim, Hyun Cheol Koo, Jung-Hae Choi, Dong-Ik Kim, Jin-Sang Kim & Seung-Hyub Baek, “Free-electron creation at the 60° twin boundary in Bi2Te3” Nature Communications, 12449 (2016)

논문(최근 5년)

-  Facile synthesis of intense green light emitting LiGdF4:Yb,Er-based upconversion bipyramidal nanocrystals and their polymer composites[Nanoscale,2014-07-01] -  Effect of group 5 elements on the formation and corrosion behavior of Ti-based BMG matrix composites reinforced by icosahedral quasicrystalline phase[Journal of alloys and compounds,2014-11-01] -  Nafion-Propyl-1,2,3-Triazole Composite Membrane for Fuel Cells[Journal of the Electrochemical Society,2014-04-01] -  Symmetry-dependent interfacial reconstruction to compensate polar discontinuity at perovskite oxide interfaces (LaAlO3/SrTiO3 and LaAlO3/CaTiO3)[Applied physics letters,2015-02-01] -  Materialization of strained CVD-graphene using thermal mismatch[NANO RESEARCH ,2015-04-01] -  High-concentration boron doping of graphene nanoplatelets by simple thermal annealing and their supercapacitive properties[Scientific Reports,2015-05-01] -  Giant Electroresistive Ferroelectric Diode on 2DEG [Scientific Reports,2015-05-01] -  Resistance switching behavior of atomic layer deposited SrTiO3 film through possible formation of Sr2Ti6O13 or Sr1Ti11O20 phases[Scientific Reports,2016-02-01] -  Stability of Y-Ti-O nanoparticles during laser melting of advanced oxide dispersion-strengthened steel powder[Journal of alloys and compounds,2015-12-01] -  Comprehensive Study on Critical Role of Surface Oxygen Vacancies for 2DEG Formation and Annihilation in LaAlO3/SrTiO3 Heterointerfaces[Electronic materials letters,2016-03-01] -  Stress-driven crystallization of amorphous metal oxide film by glass transition in metallic glass[Corrosion science,2016-03-01] -  Free-electron creation at the 60o twin boundary in Bi2Te3[Nature Communications,2016-08-01] -  Enhancement of Mechanical Hardness in SnOxNy with a Dense High-Pressure Cubic Phase of SnO2[Chemistry of materials ,2016-09-01] -  Characterization of Cr (VI) - containing solid phase particles in dry dust deposition in Daejeon, South Korea[ENVIRONMENTAL POLLUTION,2018-12-01] -  Enhancing Thermoelectric Performances of Bismuth Antimony Telluride via Synergistic Combination of Multi-Scale Structuring and Band Alignment by FeTe2 Incorporation[ACS APPLIED MATERIALS & INTERFACES,2018-05-01] -  Probing structural changes during ductile fracture in metallic glasses via in situ straining inside a MeV transmission electron microscope[INTERMETALLICS,2018-09-01] -  Utilization of high entropy alloy characteristics in Er-Gd-Y-Al-Co high entropy bulk metallic glass[ACTA MATERIALIA,2018-08-01] -  Electron beam induced epitaxial crystallization in a conducting and insulating a-LaAlO3/SrTiO3 system[RSC ADVANCES,2017-08-01] -  Reduced graphene oxide as a protection layer for Al[APPLIED SURFACE SCIENCE,2017-01-01] -  Effect of Trace Additions of Ti on the Microstructure of AlCoCrFeNi-Based High Entropy Alloy[SCIENCE OF ADVANCED MATERIALS,2016-10-01] -  Lead chromate detected as a source of atmospheric Pb and Cr (VI) pollution[SCIENTIFIC REPORTS,2016-10-01] -  The growth of GaSb/Al0.33Ga0.67Sb MQW on n-Silicon (1 0 0) with Al0.66Ga0.34Sb/AlSb SPS layers[MATERIALS RESEARCH BULLETIN,2014-09-01] -  Size-Controlled Synthesis of Copper Oxide Particles on Reduced Graphene Oxide for Lithium-Ion Battery Anode Applications[JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2015-11-01] -  Role of oxygen functional groups in graphene oxide for reversible room-temperature NO2 sensing[CARBON,2015-09-01] -  Nonvolatile Resistance Switching on Two-dimensional Electron gas[ACS APPLIED MATERIALS & INTERFACES,2014-09-01]

특허(최근 5년)

-  희토류 원소계 하이엔트로피 벌크 비정질 합금[2015-11-17] -  Nd-based two phase separation amorphous alloy[2016-05-24] -  고온 중성자 조사 손상에 강한 엔트로피 제어 BCC 합금[2016-05-04] -  고온 중성자 조사 손상에 강한 엔트로피 제어 BCC 합금[2017-02-15] -  전자빔을 이용한 단결정 금속 산화물 나노구조 제조 방법[2018-01-02] -  가공경화가 가능한 비정질 합금 기지 복합재료의 제조방법[2018-10-11]

연구과제 수행 실적

초정밀 3차원 원소 분포도 분석 기술 개발 차세대 전자기재료의 나노 스케일 전기 분극 및 자화 방향 실시간 모니터링 분석 기술 개발 전통과학원리 및 분석기법 개발 내식/내변색성이 우수한 Cu-Sn-C 합금 개발 연구장비 전문교육기관 지원 원내 나노재료 분석지원 및 분석기술 개발에 관한 연구 로렌츠 투과전자현미경을 이용한 스핀소재 연구 미세먼지 기원 분석을 위한 중금속 단일 입자 분석 플랫폼 개발