Templated assembly of micropatterned Au-Ni nanoparticles on laser interference-structured surfaces by thermal dewetting
AffiliationChangchun University of Science and Technology
North China University of Science and Technology
direct laser interference ablation
F200 Materials Science
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AbstractThis paper introduces a laser-interference-controlled electrochemical deposition method for direct fabrication of periodically micropatterned magnetite (Fe3O4) nanoparticles (NPs). In this work, Fe3O4 NPs were controllably synthesized on the areas where the photoconductive electrode was exposed to the periodically patterned interferometric laser irradiation during the electrodeposition. Thus, the micropattern of Fe3O4 NPs was controlled by interferometric laser pattern, and the crystallization of the particles was controlled by laser interference intensity and electrochemical deposition conditions. The bottom-up electro- chemical approach was combined with a top-down laser interference method- ology. This maskless method allows for in situ fabrication of periodically patterned magnetite NPs on the microscale by electrodeposition under room temperature and atmospheric pressure conditions. In the experiment, Fe3O4 NPs with the mean grain size below 100 nm in the pattern of 5-lm line array were achieved within the deposition time of 100 s. The experiment results have shown that the proposed method is a one-step approach in fabricating large areas of periodically micropatterned magnetite NPs.
CitationWang L, Dong L, Li L, Ding R, Liu J, Zhang We, Wang Y, Weng Z, Guo X, Wang Z. (2020) 'Templated assembly of micropatterned Au-Ni nanoparticles on laser interference-structured surfaces by thermal dewetting', Journal of Magnetism and Magnetic Materials, 53 (), pp.165876-.
SponsorsNational Key R&D Program of China (No. 2016YFE0112100), EU H2020 Program (FabSurfWAR No.644971; NanoStencil No.767285), National Natural Science Foundation Program of China (No.11504030, No.61964007), Jilin Provincial Science and Technology Program (Nos.20160623002TC, 20180414002GH, 20180414081GH, 20180520203JH and 20190702002GH), and “111” Project of China (D17017).
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