光散射学报, 2017, 29 (2): 142, 网络出版: 2017-07-05  

非独立散射对纳米颗粒介质光热效应的影响

Dependent Scattering Influences on Photothermal Effect of Nanoparticulate Material
作者单位
南京理工大学 能源与动力工程学院,南京 210094
摘要
本文采用有限元软件COMSOL结合双温度模型模拟了含金纳米颗粒复合介质的光热效应和温度分布,分析了金纳米颗粒非独立散射的影响,讨论了发生光热效应时复合介质内能量的传递方式。结果表明: 将双温度模型与Fourier导热定律结合可以描述纳米颗粒及周围介质的温度变化; 与独立散射的颗粒相比,非独立散射情况下光热效应与颗粒间的耦合现象有关,并且这种耦合效应与颗粒间的距离相关。v
Abstract
This paper studies the light-induced heating and the temperature distribution of Au nanoparticulate material by using the finite element software COMSOL combined with the two-temperature model,where the effect of dependent scattering of Au nanoparticles is studied,and the transfer mode of energy in the composite medium in photothermal effect is also discussed.The results show that the two-temperature model and the Fourier heat conduction law can be combined together to describe the temperature changes of the nanoparticles and the surrounding medium; Compared with independent scattering particles,the photothermal effect is influenced by the coupling phenomenon between dependent scattering particles,and the interparticles coupling effect depends on their distance.
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陶阳, 李佳玉. 非独立散射对纳米颗粒介质光热效应的影响[J]. 光散射学报, 2017, 29(2): 142. TAO Yang, LI Jiayu. Dependent Scattering Influences on Photothermal Effect of Nanoparticulate Material[J]. The Journal of Light Scattering, 2017, 29(2): 142.

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