Real-space imaging with pattern recognition of a ligand-protected Ag-374 nanocluster at sub-molecular resolution

Zhou, Qin1,2,3; Kaappa, Sami4,5; Malola, Sami4,5; Lu, Hui3; Guan, Dawei3; Li, Yajuan3; Wang, Haochen3; Xie, Zhaoxiong1,2; Ma, Zhibo3; Hakkinen, Hannu4,5; Zheng, Nanfeng1,2; Yang, Xueming3,6; Zheng, Lansun1,2

2018-07-27

10.1038/s41467-018-05372-5

Nature Communications   影响因子和分区

2041-1723

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 Ag-374 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 Ag-374 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.

SCI

英语

NI期刊

其他

Academy of Finland[294217] ; Academy of Finland[315549]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:000439970700004

NATURE PUBLISHING GROUP

Web of Science

1.Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Collaborat Innovat Ctr Chem Energy Mat, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China
2.Xiamen Univ, Natl & Local Joint Engn Res Ctr Preparat Technol, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China
3.Chinese Acad Sci, State Key Lab Mol React Dynam, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
4.Univ Jyvaskyla, Dept Phys, Nanosci Ctr NSC, FI-40014 Jyvaskyla, Finland
5.Univ Jyvaskyla, Dept Chem, Nanosci Ctr NSC, FI-40014 Jyvaskyla, Finland
6.Southern Univ Sci & Technol, Dept Chem, 1088 Xueyuan Rd, Shenzhen 518055, Guangdong, Peoples R China

Zhou, Qin,Kaappa, Sami,Malola, Sami,et al. Real-space imaging with pattern recognition of a ligand-protected Ag-374 nanocluster at sub-molecular resolution[J]. Nature Communications,2018,9.

Zhou, Qin.,Kaappa, Sami.,Malola, Sami.,Lu, Hui.,Guan, Dawei.,...&Zheng, Lansun.(2018).Real-space imaging with pattern recognition of a ligand-protected Ag-374 nanocluster at sub-molecular resolution.Nature Communications,9.

Zhou, Qin,et al."Real-space imaging with pattern recognition of a ligand-protected Ag-374 nanocluster at sub-molecular resolution".Nature Communications 9(2018).