Citation: LEI Xin-Xian, XIAO Gui-Na, MAN Shi-Qing, YANG Xing-Wang. Synthesis and Surface Plasmonic Resonance of Stannum Nanocaps[J]. Acta Physico-Chimica Sinica, ;2009, 25(01): 169-172. doi: 10.3866/PKU.WHXB20090130
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Stannum nanocaps were prepared by evaporating Sn on self-assembled monolayer arrays of SiO2 nanoparticles. Surface morphologies, structure, and optical properties of composite nanoparticles were characterized and investigated using scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray diffraction (XRD) and UV-Vis-NIR spectrophotometer. The results show that the composite nanoparticles are cap-shaped and surface plasmonic resonance absorption peaks move to the near-infrared region as the SiO2 diameter increases and Sn cap thickness increases.
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