Defect-mediated ripening of core-shell nanostructures

Qiubo Zhang, Xinxing Peng, Yifan Nie, Qi Zheng, Junyi Shangguan, Chao Zhu, Karen C. Bustillo, Peter Ercius, Linwang Wang, David T. Limmer and Haimei Zheng ()
Additional contact information
Qiubo Zhang: Materials Science Division, Lawrence Berkeley National Laboratory
Xinxing Peng: National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory
Yifan Nie: Materials Science Division, Lawrence Berkeley National Laboratory
Qi Zheng: Materials Science Division, Lawrence Berkeley National Laboratory
Junyi Shangguan: Materials Science Division, Lawrence Berkeley National Laboratory
Chao Zhu: School of Materials Science and Engineering, Nanyang Technological University
Karen C. Bustillo: National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory
Peter Ercius: National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory
Linwang Wang: Materials Science Division, Lawrence Berkeley National Laboratory
David T. Limmer: Materials Science Division, Lawrence Berkeley National Laboratory
Haimei Zheng: Materials Science Division, Lawrence Berkeley National Laboratory

Nature Communications, 2022, vol. 13, issue 1, 1-10

Abstract: Abstract Understanding nanostructure ripening mechanisms is desirable for gaining insight on the growth and potential applications of nanoscale materials. However, the atomic pathways of nanostructure ripening in solution have rarely been observed directly. Here, we report defect-mediated ripening of Cd-CdCl2 core-shell nanoparticles (CSN) revealed by in-situ atomic resolution imaging with liquid cell transmission electron microscopy. We find that ripening is initiated by dissolution of the nanoparticle with an incomplete CdCl2 shell, and that the areas of the Cd core that are exposed to the solution are etched first. The growth of the other nanoparticles is achieved by generating crack defects in the shell, followed by ion diffusion through the cracks. Subsequent healing of crack defects leads to a highly crystalline CSN. The formation and annihilation of crack defects in the CdCl2 shell, accompanied by disordering and crystallization of the shell structure, mediate the ripening of Cd-CdCl2 CSN in the solution.

Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.nature.com/articles/s41467-022-29847-8 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-29847-8

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-022-29847-8

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().