Ngobeh Jusu M, Sorathiya Vishal, Alwabli Abdullah, Jaffar Amar Y, Faragallah Osama S
Parul Institute of Engineering and Technology, Faculty of Engineering and Technology, Parul University, Waghodiya Road, Vadodara, Gujarat, 391760, India.
Department of Electrical Engineering, College of Engineering and Computing in Al- Qunfudhah, Umm al-Qura University, Mecca, Saudi Arabia.
Sci Rep. 2025 Jan 15;15(1):1972. doi: 10.1038/s41598-025-86230-5.
We proposed the ultrawideband solar absorber using the multisized metal resonator oriented on the top of the multilayered Metal-SiO₂-MXene-MgF₂-Tungsten structure. We have carried out a numerical investigation of this structure for the 100-2500 THz frequency, which covers the infrared, visible, and UV spectra. The proposed solar absorber is numerically investigated for the different physical parameters, such as the height of the layers, unit cell size, and resonator orientation, to identify optimized results for the high absorption capacity. The structure presented in the study shows promise, with an average absorption of 80% over the large frequency spectrum of 100-2500 THz. This structure was also investigated for the variation in oblique incident angle, which showcases the absorption stability up to 60⁰ of the incident angle. We have also reported the comparative analysis for this proposed absorber structure with other designs, demonstrating the absorption efficiency over infrared, visible, and UV spectra. The proposed structure and discrete resonator length can offer a better solution for trapping the different frequency ranges, resulting in high absorption over a wideband frequency. This study can be applied to designing highly efficient parasitic solar absorber structures, which are essential to highly efficient photovoltaic and solar cell design.
我们提出了一种超宽带太阳能吸收器，它采用了多层金属-二氧化硅-碳化钛铝 MAX 相-氟化镁-钨结构顶部的多尺寸金属谐振器。我们对该结构在 100 - 2500 太赫兹频率范围内进行了数值研究，该频率范围涵盖了红外、可见光和紫外光谱。针对不同的物理参数，如各层高度、单元尺寸和谐振器取向，对所提出的太阳能吸收器进行了数值研究，以确定具有高吸收能力的优化结果。研究中呈现的结构显示出了前景，在 100 - 2500 太赫兹的宽频谱上平均吸收率达到 80%。还研究了该结构在斜入射角变化时的情况，结果表明入射角在 60°以内时吸收稳定性良好。我们还报告了该提出的吸收器结构与其他设计的对比分析，展示了其在红外、可见光和紫外光谱上的吸收效率。所提出的结构和离散谐振器长度可为捕获不同频率范围提供更好的解决方案，从而在宽带频率上实现高吸收。这项研究可应用于设计高效的寄生太阳能吸收器结构，这对于高效光伏和太阳能电池设计至关重要。
