Strain and crystallographic identification of the helically concaved gap surfaces of chiral nanoparticles

Sungwook Choi, Sang Won Im, Ji Hyeok Huh, Sungwon Kim, Jaeseung Kim, Yae Chan Lim, Ryeong Myeong Kim, Jeong Hyun Han, Hyeohn Kim, Michael Sprung, Su Yong Lee, Wonsuk Cha, Ross Harder, Seungwoo Lee, Ki Tae Nam, Hyunjung Kim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Identifying the three-dimensional (3D) crystal plane and strain-field distributions of nanocrystals is essential for optical, catalytic, and electronic applications. However, it remains a challenge to image concave surfaces of nanoparticles. Here, we develop a methodology for visualizing the 3D information of chiral gold nanoparticles ≈ 200 nm in size with concave gap structures by Bragg coherent X-ray diffraction imaging. The distribution of the high-Miller-index planes constituting the concave chiral gap is precisely determined. The highly strained region adjacent to the chiral gaps is resolved, which was correlated to the 432-symmetric morphology of the nanoparticles and its corresponding plasmonic properties are numerically predicted from the atomically defined structures. This approach can serve as a comprehensive characterization platform for visualizing the 3D crystallographic and strain distributions of nanoparticles with a few hundred nanometers, especially for applications where structural complexity and local heterogeneity are major determinants, as exemplified in plasmonics.

Original languageEnglish
Article number3615
JournalNature communications
Volume14
Issue number1
DOIs
Publication statusPublished - 2023 Dec

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea grant NRF- 2021R1A3B1077076 (S.C., S.K., J.K., Hyunjung K.), NRF-2017M3D1A1039377 (S.W.I., Y.-C.L., R.M.K., Jeong Hyun H., Hyeohn K., K.T.N.), NRF-2019R1A2C2004846 (Ji-Hyeok H., S.L.). This work was supported by the Technology Innovation Program funded By the Ministry of Trade, Industry & Energy (MOTIE, Korea) grant 20012390 (S.W.I., Y.-C.L., R.M.K., Jeong Hyun H., Hyeohn K., K.T.N.). We acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Parts of this research were carried out at P10, PETRA III. Beamtime was allocated for proposal I-20190530. Experiments at 9 C, PLS-II were supported in part by MSIT and POSTECH. Use of the Advanced Photon Source (34-ID-C) was supported by the Office of Basic Energy Science, under the Office of Science of the US Department of Energy (Contract No. DE-AC02-06CH11357).

Funding Information:
This work was supported by the National Research Foundation of Korea grant NRF- 2021R1A3B1077076 (S.C., S.K., J.K., Hyunjung K.), NRF-2017M3D1A1039377 (S.W.I., Y.-C.L., R.M.K., Jeong Hyun H., Hyeohn K., K.T.N.), NRF-2019R1A2C2004846 (Ji-Hyeok H., S.L.). This work was supported by the Technology Innovation Program funded By the Ministry of Trade, Industry & Energy (MOTIE, Korea) grant 20012390 (S.W.I., Y.-C.L., R.M.K., Jeong Hyun H., Hyeohn K., K.T.N.). We acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Parts of this research were carried out at P10, PETRA III. Beamtime was allocated for proposal I-20190530. Experiments at 9 C, PLS-II were supported in part by MSIT and POSTECH. Use of the Advanced Photon Source (34-ID-C) was supported by the Office of Basic Energy Science, under the Office of Science of the US Department of Energy (Contract No. DE-AC02-06CH11357).

Publisher Copyright:
© 2023, The Author(s).

ASJC Scopus subject areas

  • General Chemistry
  • General Biochemistry,Genetics and Molecular Biology
  • General Physics and Astronomy

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