Volume 62, Issue 36 e202305604
Research Article

Sandwich-Kernelled AgCu Nanoclusters with Golden Ratio Geometry and Promising Photothermal Efficiency

Liang Fang

Liang Fang

Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031 P. R. China

Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026 P. R. China

These authors contributed equally to this work.

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Wentao Fan

Wentao Fan

Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031 P. R. China

Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026 P. R. China

These authors contributed equally to this work.

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Guoqing Bian

Guoqing Bian

Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031 P. R. China

Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026 P. R. China

These authors contributed equally to this work.

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Runguo Wang

Runguo Wang

Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031 P. R. China

Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026 P. R. China

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Dr. Qing You

Dr. Qing You

Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031 P. R. China

Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601 P. R. China

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Dr. Wanmiao Gu

Dr. Wanmiao Gu

Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031 P. R. China

Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601 P. R. China

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Dr. Nan Xia

Dr. Nan Xia

Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031 P. R. China

Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601 P. R. China

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Dr. Lingwen Liao

Dr. Lingwen Liao

Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031 P. R. China

Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601 P. R. China

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Prof. Dr. Jin Li

Prof. Dr. Jin Li

Tsinghua University-Peking University Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084 P. R. China

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Prof. Dr. Haiteng Deng

Prof. Dr. Haiteng Deng

MOE Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, 100084 P. R. China

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Dr. Nan Yan

Corresponding Author

Dr. Nan Yan

Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031 P. R. China

Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601 P. R. China

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Prof. Dr. Zhikun Wu

Corresponding Author

Prof. Dr. Zhikun Wu

Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031 P. R. China

Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601 P. R. China

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First published: 19 May 2023
Citations: 13

Graphical Abstract

A silver copper nanocluster with a golden ratio pentangle structure is prepared. It shows promising photothermal conversion. It is a novel alloy nanocluster with a sandwich-like kernel (diameter≈0.9 nm and length≈0.25 nm), and gives insight into the relationship between structure and photothermal properties.

Abstract

Metal nanoclusters have recently attracted extensive interest from the scientific community. However, unlike carbon-based materials and metal nanocrystals, they rarely exhibit a sheet kernel structure, probably owing to the instability caused by the high exposure of metal atoms (particularly in the relatively less noble Ag or Cu nanoclusters) in such a structure. Herein, we synthesized a novel AgCu nanocluster with a sandwich-like kernel (diameter≈0.9 nm and length≈0.25 nm) by introducing the furfuryl mercaptan ligand (FUR) and the alloying strategy. Interestingly, the kernel consists of a centered silver atom and two planar Ag10 pentacle units with completely mirrored symmetry after a rotation of 36 degrees. The two Ag10 pentacles and some extended structures show an unreported golden ratio geometry, and the two inner five-membered rings and the centered Ag atom form an unanticipated full-metal ferrocene-like structure. The featured kernel structure causes the dominant radial direction transition of excitation electrons, as determined via time-dependent density functional theory calculations, which affords the protruding absorption at 612 nm and contributes to the promising photothermal conversion efficiency of 67.6 % of the as-obtained nanocluster, having important implications for structure-property correlation and the development of nanocluser-based photothermal materials.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the Supporting Information of this article.

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