文献类型：期刊文献

英文题名：Bioinspired Antireflection Double-Layer Coatings Design Method and Light Management to Realize Radiative Sky Cooling in Photovoltaic Module

作者：Xu, Yi[1];Lyu, Jizu[1,2];Gao, Linsong[1];Liu, Hongsheng[1];Yin, Ningxia[2];Li, Yubai[1]

机构：[1]Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116024, Liaoning, Peoples R China;[2]Guangdong Ocean Univ, Sch Mech Engn, Zhanjiang 524088, Guangdong, Peoples R China

年份：2023

卷号：11

期号：10

外文期刊名：ENERGY TECHNOLOGY

收录：SCI-EXPANDED(收录号：WOS:001044094700001)、、EI(收录号：20233314524437)、Scopus(收录号：2-s2.0-85167403037)、WOS

基金：Acknowledgements This work was supported by the National Natural Science Foundation of China, China (grant nos. 52106226, 51876027, and 52176058) and Fundamental Research Funds for the Central Universities, China (DUT20RC(3)095).

语种：英文

外文关键词：antireflection; bioinspiration; light management; photovoltaic modules; radiative sky cooling

外文摘要：Recent research on combining photovoltaic (PV) modules with radiative sky cooling (RSC) technology has elicited much interest. Such cross-disciplinary technology coupling provides a feasible approach to solar cells' nighttime applications. However, current commonly used radiative sky cooling materials' (RSCMs) conflict with the solar light harvesting and utilizing of PV module. The spectral selectivity characteristics of the strong transmission in the solar spectrum range (0.3-1.1 & mu;m) and the enough emissivity within the atmosphere transparency window (8-13 & mu;m) are the essential to develop the PV module-usable RSC coating. Herein, antireflection (AR) structure optimize method and RSC coating design method are proposed to achieve nighttime RSC capacity with high solar radiation transmission property via the RSCM selection and light management, in the visible, near-infrared, and midinfrared wavelength range, originating from the subwavelength optical effects of bioinspired AR design. A kind of double-layer coating consisting of the PDMS substrate layer and SiO2 close-packed hexagonal rotating parabolic body-bioinspired moth-eye structure cover layer is designed in this research. The coating has 0.997 average transmissivity characteristic in solar spectrum and can lower the PV cell temperature over 10.5 K than ambient at night.