Modifications in structure and optical property of Cu nanoparticles in SiO2 by post heavy ion irradiation
作者： Changlong Liu , Nana Wang , Jun Wang , Huixian Liu , Guangyi Jia
DOI: 10.1016/J.NIMB.2013.10.045
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摘要: Abstract The implantation-synthesized Cu nanoparticles (NPs) in silica were irradiated with 500 keV Xe and Ar ions, respectively. After ion irradiation at a fluence of 2 × 1016/cm2, the average diameter NPs was increased from 7.3 to 8.5 nm, especially, 11–14 nm formed beyond projected range ions nearly aligned same depth, which presented higher volume fraction. As result, surface plasmon resonance (SPR) absorption peak enhanced. However, if less than 1 × 1016/cm2, no clear variation SPR could be found. Further, it also revealed that caused more drastically change fluence. underlying processes for above findings discussed tentatively proposed.
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