Multilayered Plasmonic Nanostructures for Solar Energy Harvesting
Multilayered Plasmonic Nanostructures for Solar Energy Harvesting
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DOI：
10.1021/acs.jpcc.8b05769
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发表时间：
2018-08-30
影响因子：
3.7
通讯作者：
Wakabayashi, Katsunori
中科院分区：
文献类型：
--
作者：
Phan, Anh D.;Le, Nam B.;Wakabayashi, Katsunori
利用Mie理论和热传导方程对核-壳-壳Au@SiO2 pAu纳米结构的光学性质及其在太阳能收集方面的应用进行了理论研究。与体金介电函数的尺寸相关的修改的理论分析与以前的实验结果吻合得很好。我们使用适当的吸收截面，以确定太阳能的吸收效率的纳米异质结构，这是强烈的结构依赖性，并预测随时间变化的温度增加的纳米壳溶液在模拟太阳照射下。与以前的温度测量和太阳能转换效率的理论评估进行了比较，讨论了潜在的机制提供新的见解。我们的方法将加速太阳能收集中的材料和结构测试。
Optical properties of core-shell-shell Au@SiO2 pAu nanostructures and their solar energy harvesting applications are theoretically investigated using Mie theory and heat-transfer equations. The theoretical analysis associated with size-dependent modification of the bulk gold dielectric function agrees well with previous experimental results. We use the appropriate absorption cross section to determine the solar energy absorption efficiency of the nano-heterostructures, which is strongly structure-dependent, and to predict the time-dependent temperature increase of the nanoshell solution under simulated solar irradiation. Comparisons to prior temperature measurements and theoretical evaluation of the solar power conversion efficiency are discussed to provide new insights into underlying mechanisms. Our approach would accelerate materials and structure testing in solar energy harvesting.