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원자분해능 전자구조 주사투과전자현미경

Home 연구활동선도연구장비원자분해능 전자구조 주사투과전자현미경 인포그래픽

인포그래픽 < 원자분해능 전자구조 주사투과전자현미경 < 선도연구장비


  세계 일류의 첨단과학을 이끄는
  KBSI 선도연구장비를 소개합니다
  나노물질의 화학구조를 원자단위로 보는
  Mono Cs STEM
  (Monochromated Cs-Corrected Scanning Transmission Electron Microscope)
  01 제원 및 성능/특징
  00
  형태
  EDX system
  Double SDD system
  1432
  Monochromator system
  Double Wien-filter (30-200kV)
  1st Commercial Monochromated
  Ke
  NEO ARM
  STEM detector
  Hybrid ABF detector (HAADE, BF, ABF, e-ABF)
  00
  Probe Corrector ASCOR-5 order corrector ASCOR 40 CESCO 34
  Enhanced ABF mode
  Probe Corrector Continuum GIF (CMOS)
  Image processing -ABE
  High speed (30), high quality m
  Resolution (in STEM) : 0.136 nm (30kV)
  0.08 nm (200kV)
  • Energy resolution: <25 meV (@60kV) <36 meV (@200kV)
  Atomic scale images
  02
  활용분야
  반도체구조분석
  나노구조 신소재 개발
  03 대표연구성과
  Atomic Structure
  • Atomic scale analysis
  1st Commercial
  Monochromated
  NEO ARM
  에너지소재연구
  Bio-material
  Interface analysis
  00 05 10 15 20 25 30 35 Distance (nm)
  :Direct observation of atomic scale a BizTe, nanoplatelet.
  Electronic Structure
  :Sharp interface without defects
  Nat. Commun. 11 1285 (2020)
  Advan. Elect. Mater. 1800504 (2018)
  • Atomic EELS map
  .interface
  ALO
  TIO
  La Co Ti
  SO,
  10nm
  :Atomic column resolved chemical EELS/EDS mapping
  470 530 545 560 Energy loss (eV)
  : Oxygen vacancies at the interface for studying 2 DEG mechanism
  Atomic Dynamics
  LaCoo, LaCoO20 LaCoO275 LaCoO27 LaCoO2s
  n=5
  (A,B,O) (A,B,0..)
  n=3 (A,B,O,)
  n=2 (A,B,0,)
  ACS Nano 12 10403 (2018)
  • Chemical analysis
  : Observation of fine changes in the spectral structure of oxygen vacancies. J. Mater. Chem. A. 825345 (2020)
  ACS ANO
  Wwwwww LSAT COURARAR LSAT
  POLSAT
  34A 45A
  :Direct observation of oxygen vacancies unit-cell by unit-cell
  ACS Nano 11 6942 (2017)