Numerical simulation on the thermal radiative properties of a 2D   SiO2/W/SiO2/W layered grating for thermophotovoltaic applications

doi:10.1016/j.jqsrt.2016.05.010

CORC > 北京大学 > 工学院

	Numerical simulation on the thermal radiative properties of a 2D SiO2/W/SiO2/W layered grating for thermophotovoltaic applications
	Zhao, Yi ; Fu, Ceji
刊名	JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
	2016
关键词	Wavelength selectivity Layered grating TPV emitter Electromagnetic resonance METALLIC PHOTONIC CRYSTALS COHERENT EMISSION ABSORBERS EMITTERS POLARITONS DESIGN FILM
DOI	10.1016/j.jqsrt.2016.05.010
英文摘要	Tailoring the spectrum of thermal emission from the emitter is important for improving the performance of a thermophotovoltaic (TPV) system. In this work, a two-dimensional (2D) layered grating structure made of SiO2 and tungsten (W), which can realize wavelength-selective control of thermal emission, was proposed for a potential emitter in TPV applications. Numerical simulations of the spectral emissivity of the structure from the ultraviolet (UV) to the mid-infrared region reveals that the spectral-normal emissivity of the structure is enhanced to above 0.95 in the wavelength region from 0.55 mu m to 1.9 mu m for both TE and TM waves, but drops sharply at wavelength larger than 2 mu m. Physical mechanisms responsible for the wavelength-selective emissivity were elucidated as due to resonance of magnetic polaritons (MPs) in the SiO2 spacer and in the grooves of the tungsten grating, Wood's anomaly (WA), excitation of surface plasmon polaritons (SPPs) and wave interference. Furthermore, the structure was found to exhibit quasi diffuse and polarization-insensitive features of thermal emission, suggesting that the proposed structure can serve as the emitter in the design of high performance TPV systems. (C) 2016 Elsevier Ltd. All rights reserved.; National Natural Science Foundation of China [51576004]; SCI(E); EI; ARTICLE; cjfu@pku.edu.cn; 35-44; 182
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437020]
专题	工学院
推荐引用方式 GB/T 7714	Zhao, Yi,Fu, Ceji. Numerical simulation on the thermal radiative properties of a 2D SiO2/W/SiO2/W layered grating for thermophotovoltaic applications[J]. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,2016.
APA	Zhao, Yi,&Fu, Ceji.(2016).Numerical simulation on the thermal radiative properties of a 2D SiO2/W/SiO2/W layered grating for thermophotovoltaic applications.JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER.
MLA	Zhao, Yi,et al."Numerical simulation on the thermal radiative properties of a 2D SiO2/W/SiO2/W layered grating for thermophotovoltaic applications".JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER (2016).