Magnetic Field Effect of Near-Field Radiative Heat Transfer for SiC Nanowires/Plates

Magnetic Field Effect of Near-Field Radiative Heat Transfer for SiC Nanowires/Plates
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SiC 纳米线/板近场辐射传热的磁场效应

DOI:
10.3390/app8112023
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发表时间:
2018-10
影响因子:
2.7
通讯作者:
Wang Han
Wang Han
中科院分区:
综合性期刊4区
文献类型:
--
作者:
Shen Zhiyuan;Wu Hao;Wang Han

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由于磁光效应,碳化硅微米/纳米结构在提高光伏非互易吸收方面具有优势。在这项工作中,我们展示了在不同磁场强度下两个取向的碳化硅纳米线/片之间的近场辐射传输,其中介电常数张量的洛伦兹-德鲁德方程被用来描述施加在碳化硅结构上的磁场的介电常数。磁场强度在本研究中是合格的。利用局域有效介质理论和涨落耗散定理,计算了不同填充比和不同间隙的碳化硅纳米线在外加磁场作用下的近场辐射。与两片碳化硅之间的近场热流密度相比,随着磁场强度的增大、填充率的提高和间隙的减小,碳化硅纳米线之间的近场热流密度增大。为了了解不同入射角和不同磁场强度下的光耦合、传输和吸收特性,还给出了电场强度。该研究对光学仪器的散热设计有一定的参考价值。
The SiC micro/nano-scale structure has advantages for enhancing nonreciprocal absorptance for photovoltaic use due to the magneto optical effect. In this work, we demonstrate the near-field radiative transfer between two aligned SiC nanowires/plates under different magnetic field intensities, in which Lorentz-Drude equations of the dielectric constant tensor are proposed to describe the dielectric constant as a magnetic field applied on the SiC structure. The magnetic field strength is qualified in this study. Using local effective medium theory and the fluctuation-dissipation theorem, we evaluate the near-field radiation between SiC nanowires with different filling ratios and gap distances under an external magnetic field. Compared to the near-field heat flux between two SiC plates, the one between SiC nanowires can be enhanced with magnetic field intensity, a high filling ratio, and a small gap distance. The electric field intensity is also presented for understanding light coupling, propagation, and absorption nature of SiC grating under variable incidence angles and magnetic field strengths. This relative study is useful for thermal radiative design in optical instruments.
DOI: 10.1364/oe.25.019609
发表时间: 2017-08
期刊: Optics express
影响因子: 3.8
作者:
Han Wang;Hao Wu;Z. Shen
通讯作者: Han Wang;Hao Wu;Z. Shen
DOI: 10.1038/srep01383
发表时间: 2013
期刊: SCIENTIFIC REPORTS
影响因子: 4.6
作者:
Messina, Riccardo;Ben-Abdallah, Philippe
通讯作者: Ben-Abdallah, Philippe
DOI: 10.1021/nl901208v
发表时间: 2009-08-01
期刊: NANO LETTERS
影响因子: 10.8
作者:
Shen, Sheng;Narayanaswamy, Arvind;Chen, Gang
通讯作者: Chen, Gang
DOI: 10.1080/15567265.2013.776154
发表时间: 2013-11-01
影响因子: 4.1
作者:
Wang, L. P.;Zhang, Z. M.
通讯作者: Zhang, Z. M.
DOI: 10.1021/nl3034784
发表时间: 2012-11-01
期刊: NANO LETTERS
影响因子: 10.8
作者:
Green, Martin A.
通讯作者: Green, Martin A.