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3-Dimensional Scanning of Entire Unit Cells in Single Nanoparticles.
- Authors
- Heo, Junyoung; Kang, Dohun; Kim, Sungin; Chun, Hoje; Han, Byungchan; Kim, Byung Hyo; Park, Jungwon
- Issue Date
- May-2022
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Symmetry analysis; Atomic structures; Nanoparticles; Unit-cell analysis; Structure-activity relationships
- Citation
- CHEMNANOMAT, v.8, no.5
- Journal Title
- CHEMNANOMAT
- Volume
- 8
- Number
- 5
- ISSN
- 2199-692X
- Abstract
- Properties of nanomaterials such as optical, electrical, and chemical properties are strongly correlated with lattice symmetry, making characterization of lattice symmetry essential. We introduce a symmetry analysis method using 3D atomic coordinates obtained by Brownian one-particle 3D reconstruction. The method allows direct and quantitative analysis of symmetrical properties and delivers local structural characteristics of individual platinum (Pt) nanoparticles in unit-cell level. Local structural deformations of the Pt nanoparticles such as lattice distortion and internal symmetry breakage are demonstrated, revealing that the crystal structure of sub-3 nm Pt nanoparticles generally maintains FCC crystallinity and exhibits localized deviation from their bulk counterpart.
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Related Researcher
- Kim, Byung Hyo
- College of Engineering (Department of Materials Science and Engineering)