A1 Journal article (refereed)
Real-space imaging with pattern recognition of a ligand-protected Ag374 nanocluster at sub-molecular resolution (2018)


Zhou, Q., Kaappa, S., Malola, S., Lu, H., Guan, D., Li, Y., Wang, H., Xie, Z., Ma, Z., Häkkinen, H., Zheng, N., Yang, X., & Zheng, L. (2018). Real-space imaging with pattern recognition of a ligand-protected Ag374 nanocluster at sub-molecular resolution. Nature Communications, 9, Article 2948. https://doi.org/10.1038/s41467-018-05372-5


JYU authors or editors


Publication details

All authors or editorsZhou, Qin; Kaappa, Sami; Malola, Sami; Lu, Hui; Guan, Dawei; Li, Yajuan; Wang, Haochen; Xie, Zhaoxiong; Ma, Zhibo; Häkkinen, Hannu; et al.

Journal or seriesNature Communications

ISSN2041-1723

eISSN2041-1723

Publication year2018

Volume9

Issue number0

Article number2948

PublisherNature Publishing Group

Publication countryUnited Kingdom

Publication languageEnglish

DOIhttps://doi.org/10.1038/s41467-018-05372-5

Publication open accessOpenly available

Publication channel open accessOpen Access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/59110


Abstract

High-resolution real-space imaging of nanoparticle surfaces is desirable for better understanding of surface composition and morphology, molecular interactions at the surface, and nanoparticle chemical functionality in its environment. However, achieving molecular or sub-molecular resolution has proven to be very challenging, due to highly curved nanoparticle surfaces and often insufficient knowledge of the monolayer composition. Here, we demonstrate sub-molecular resolution in scanning tunneling microscopy imaging of thiol monolayer of a 5 nm nanoparticle Ag374 protected by tert-butyl benzene thiol. The experimental data is confirmed by comparisons through a pattern recognition algorithm to simulated topography images from density functional theory using the known total structure of the Ag374 nanocluster. Our work demonstrates a working methodology for investigations of structure and composition of organic monolayers on curved nanoparticle surfaces, which helps designing functionalities for nanoparticle-based applications.


Keywordsnanoparticlesimagingmicroscopy

Free keywordshigh-resolution real-space imaging; nanoparticle surfaces; surface composition; morphology


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Ministry reportingYes

Reporting Year2018

JUFO rating3


Last updated on 2024-08-01 at 19:01