β-Sn@Gr核壳结构的制备及其表面等离子性质探索
首发时间:2019-04-15
摘要:在合成金属锡纳米颗粒的基础上,利用静电吸附作用成功原位还原制备出了金属锡@石墨烯核壳结构。紫外-可见光谱及有限元仿真的结果共同表明,石墨烯的包覆可以在保持近场增强能力的前提下对金属锡的表面等离子共振频率进行调节,从而该全IV族表面等离子材料有望在硅基光电、光伏器件中发挥重要作用。
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Exploration of preparation and surface plasmonic performance of β-Sn@Gr core-shell structure
Abstract:β-Sn@Grcore-shell structures have been sucessfullysynthetized by taking advantage of electrostatic adherence effect on the basis of prepration of β-Sn nanoparticles. The results of UV-Vis spectra and finite element simulations indicate that the wrappinggraphene (Gr) layers could adjust the surface plasmon resonance frequency of β-Sn nanopaticles without lossing the near-field enhancement performance. As the result, such all IV-group plasmonic material could play an important role in the Si-based optoelectronic and photovoltaic devices.
Keywords: β-Sn@Graphene Core-shell structure Surface plasmonic performance
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