球形金属纳米颗粒的热等离子体和热光学性质及其在热等离子体和光子方面的应用

V. Pustovalov, L. Astafyeva, W. Fritzsche
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引用次数: 6

摘要

纳米粒子作为光热剂在激光和光学纳米技术中的研究和应用是一个快速发展的研究和应用领域。纳米粒子应用的潜在好处包括热成像和处理含有纳米粒子的材料的可能性,纳米粒子在光热能量转换、催化、激光纳米医学和化学中的应用。金属纳米粒子在激光和光学纳米技术中的应用效率取决于纳米粒子的等离子体和热物理性质、辐射特性和周围介质。在这里,我们提出了NP性质(等离子体、热光学和其他)的比较分析结果,允许为热等离子体和光子应用选择它们的参数。对几种金属(金、银、铂、钴、锌、镍、钛、铜、铝、钼、钒和钯)NPs的等离子体和热光学性质进行了理论研究和分析。研究了纳米粒子参数(纳米粒子材料的金属类型、半径、光学指标、密度和热容)、辐射特性(波长和脉冲持续时间)和环境参数对纳米粒子等离子体和热物理性质的影响。利用NP的吸收效率因子小于其最大值时,可以获得热光学参数的最大值(最大NP温度)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Plasmonic and Thermooptical Properties of Spherical Metallic Nanoparticles for Their Thermoplasmonic and Photonic Applications
Investigations and use of nanoparticles (NPs) as photothermal (PT) agents in laser and optical nanotechnology are fast growing areas of research and applications. The potential benefits of NPs applications include possibility for thermal imaging and treatment of materials containing of NPs, applications of NPs for light-to-thermal energy conversion, in catalysis, laser nanomedicine, and chemistry. Efficiency of applications of metallic NPs for laser and optical nanotechnology depends on plasmonic and thermophysical properties of NPs, characteristics of radiation, and surrounding medium. Here we present the results of comparative analysis of NP properties (plasmonic, thermooptical, and others) allowing selecting their parameters for thermoplasmonic and photonic applications. Plasmonic and thermooptical properties of several metallic (aurum, silver, platinum, cobalt, zinc, nickel, titanium, cuprum, aluminum, molybdenum, vanadium, and palladium) NPs are theoretically investigated and analysis of them is carried out. Investigation of the influence of NPs parameters (type of metal, radii, optical indexes, density, and heat capacity of NP material), characteristics of radiation (wavelength and pulse duration), and ambient parameters on plasmonic and thermophysical properties of NPs has been carried out. It was established that maximum value of thermooptical parameter (maximum NP temperature) can be achieved with the use of absorption efficiency factor of NP smaller than its maximum value.
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