红外与毫米波学报2019，Vol.38Issue(5)：566-571,6.DOI:10.11972/j.issn.1001-9014.2019.05.004
基于W双十字形微结构的太阳能选择性吸收薄膜的数值研究
Numerical study of a tungsten twin-cross-grating-based solar selective absorber
摘要
Abstract
Based on the six-layered metal/dielectric film structure,a new 2D tungsten twin-cross-grating-based solar selective absorber (SSA) has been proposed to improve the optical absorption in the solar radiation region.The weighted average absorptivity before the cut-off wavelength is about 96.5％,and the calculated emissivity at 850 K is about 0.086.The mechanisms of high absorption in the solar region have been further analyzed by field intensity distribution in the SSA structure.The absorber also has the feature to be less polarization-dependent and broad angular-independent up to 50°,which satisfies the required conditions of the SSA device in applications.关键词
太阳能选择性吸收薄膜/光子晶体吸收器/高吸收/低辐射Key words
solar selective absorber/photonic crystal absorbers/high absorption/low emittance分类
数理科学引用本文复制引用
张静如,陈良尧,涂华恬,臧恺岩,胡二涛,张荣君,郑玉祥,王松有,赵海斌,杨月梅..基于W双十字形微结构的太阳能选择性吸收薄膜的数值研究[J].红外与毫米波学报,2019,38(5):566-571,6.基金项目
Supported by National Natural Science Foundation of China (61427815) （61427815）
