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首页> 外文期刊>Journal of Nondestructive Evaluation >Synthesis of Silver Nano-cubes and Study of Their Elastic Properties Using X-Ray Diffraction Line Broadening
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Synthesis of Silver Nano-cubes and Study of Their Elastic Properties Using X-Ray Diffraction Line Broadening

机译：银纳米立方体的合成及其使用X射线衍射线扩大的弹性性能研究

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Poly(vinyl pyrrolidone) (PVP) protected silver nano-cubes (AgNCs) have been prepared through the chemical reduction using ethylene glycol as a reducing agent. High resolution transmission electron microscopic study (HRTEM) gives the average size of the prepared silver nanoparticles as 100nm approximately with a morphology of cubic shape. The average crystalline size and lattice strain has been calculated from the peak broadening of the X-ray diffraction pattern (XRD) of silver nano-cubes. All the elastic properties such as strain, stress and energy density of prepared nanoparticles have been calculated using different modified models of the Williamson Hall Method. Here size and strain have also been calculated from the size-strain plot (SSP) method. UV/Vis study shows an absorption peak due to surface plasmon resonance (SPR) in the visible range at 2.79eV and photoluminescence, which gives an emission spectra in the visible range at 2.53eV, confirming a band gap in the silver nano-cubes.
机译：通过使用乙二醇作为还原剂，通过化学还原制备聚（乙烯基吡咯烷酮）（PVP）保护的银纳米立方体（AGNC）。高分辨率透射电子显微镜研究（HRTEM）将制备的银纳米粒子的平均尺寸大致为100nm，大致具有立方形的形态。已经根据银纳米立方体的X射线衍射图（XRD）的峰扩展来计算平均结晶尺寸和晶格菌株。所有的弹性特性，如制备的纳米颗粒的应变，应力和能量密度，已经使用Williamson Hall方法的不同改性模型计算。这里还从大小 - 应变图（SSP）方法计算了大小和应变。 UV / VIS研究表明，在2.79EV的可见范围内的表面等离子体共振（SPR），光致发光的吸收峰，其在2.53EV的可见范围内给出了发射光谱，确认了银纳米立方体中的带隙。

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