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首页> 外文期刊>Optical and quantum electronics >Expedient paramagnetic properties of surfactant-free plasmonic silicon-based nanoparticles
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Expedient paramagnetic properties of surfactant-free plasmonic silicon-based nanoparticles

机译：不含表面活性剂的等离激元硅基纳米颗粒的顺磁性

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摘要

Surfactant-free multifunctional semiconductor-metallic nanostructures possessing several modalities are formed due to laser-induced structural modification of pure silicon nanoparticles in the presence of gold. It results to variable size-dependent chemical composition examined by energy-dispersive X-ray spectroscopy. Laser-synthesized silicon-based nano-composites exhibit remarkable both plasmonic and paramagnetic properties. Their plasmonic maxima are found to be easily adjusted in the whole visible spectral range. Influence of resonant laser irradiation on spin behaviour of silicon-gold nanoparticles is established. Their spin-lattice and spin-spin relaxation processes are investigated as well. Such multifunctional nanoparticles can reveal a huge potential for different applications in field of nanomedicine, in particular, for biosensing and bioimaging.
机译：由于在金的存在下激光诱导的纯硅纳米粒子的结构改性，形成了具有几种形态的无表面活性剂的多功能半导体金属纳米结构。结果导致了通过能量色散X射线光谱法检查的尺寸依赖性化学成分的变化。激光合成的硅基纳米复合材料具有显着的等离子体和顺磁特性。发现它们的等离子最大值在整个可见光谱范围内都很容易调整。建立了共振激光辐照对硅金纳米粒子自旋行为的影响。还研究了它们的自旋晶格和自旋自旋弛豫过程。这样的多功能纳米颗粒可以显示出在纳米医学领域中不同应用的巨大潜力，特别是在生物传感和生物成像方面。

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