Synthesis of nanoparticles through x-ray radiolysis using synchrotron radiation

A. Yamaguchi; I. Okada; T. Fukuoka; M. Ishihara; I. Sakurai; Y. Utsumi

doi:10.1117/12.2237124

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26 September 2016 Synthesis of nanoparticles through x-ray radiolysis using synchrotron radiation

A. Yamaguchi, I. Okada, T. Fukuoka, M. Ishihara, I. Sakurai, Y. Utsumi

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Proceedings Volume 9929, Nanostructured Thin Films IX; 992919 (2016) https://doi.org/10.1117/12.2237124
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

The synthesis and deposition of nanoparticles consisting of Cu and Au in a CuSO₄ solution with some kinds of alcohol and electroplating solution containing gold (I) trisodium disulphite under synchrotron X-ray radiation was investigated. The functional group of alcohol plays an important in nucleation, growth and aggregation process of copper and cupric oxide particles. We found that the laboratory X-ray source also enables us to synthesize the NPs from the metallic solution. As increasing X-ray exposure time, the full length at half width of particle size distribution is broader and higher-order nanostructure containing NPs clusters is formed. The surface-enhanced Raman scattering (SERS) of 4, 4'-bipyridine (4bpy) in aqueous solution was measured using higher-order nanostructure immobilized on silicon substrates under systematically-varied X-ray exposure. This demonstration provide a clue to develop a three-dimensional printing and sensor for environmental analyses and molecular detection through simple SERS measurements.

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A. Yamaguchi, I. Okada, T. Fukuoka, M. Ishihara, I. Sakurai, and Y. Utsumi "Synthesis of nanoparticles through x-ray radiolysis using synchrotron radiation", Proc. SPIE 9929, Nanostructured Thin Films IX, 992919 (26 September 2016); https://doi.org/10.1117/12.2237124

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