Tharwat Marwa M, Almalki Ashwag, Mahros Amr M
Department of Electrical & Computer Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
Physics Department, University of Jeddah, Jeddah 23218, Saudi Arabia.
Materials (Basel). 2021 Mar 12;14(6):1380. doi: 10.3390/ma14061380.
In this paper, a randomly distributed plasmonic aluminum nanoparticle array is introduced on the top surface of conventional GaAs thin-film solar cells to improve sunlight harvesting. The performance of such photovoltaic structures is determined through monitoring the modification of its absorbance due to changing its structural parameters. A single Al nanoparticle array is integrated over the antireflective layer to boost the absorption spectra in both visible and near-infra-red regimes. Furthermore, the planar density of the plasmonic layer is presented as a crucial parameter in studying and investigating the performance of the solar cells. Then, we have introduced a double Al nanoparticle array as an imperfection from the regular uniform single array as it has different size particles and various spatial distributions. The comparison of performances was established using the enhancement percentage in the absorption. The findings illustrate that the structural parameters of the reported solar cell, especially the planar density of the plasmonic layer, have significant impacts on tuning solar energy harvesting. Additionally, increasing the plasmonic planar density enhances the absorption in the visible region. On the other hand, the absorption in the near-infrared regime becomes worse, and vice versa.
在本文中，在传统砷化镓薄膜太阳能电池的顶表面引入了随机分布的等离子体铝纳米颗粒阵列，以改善太阳光的捕获。通过监测由于结构参数变化而导致的吸光度变化来确定这种光伏结构的性能。在抗反射层上集成单个铝纳米颗粒阵列，以增强可见光和近红外波段的吸收光谱。此外，等离子体层的面密度被视为研究和调查太阳能电池性能的关键参数。然后，我们引入了双铝纳米颗粒阵列，它与规则均匀的单阵列不同，具有不同尺寸的颗粒和各种空间分布。使用吸收增强百分比进行性能比较。研究结果表明，所报道的太阳能电池的结构参数，特别是等离子体层的面密度，对调节太阳能捕获有显著影响。此外，增加等离子体面密度可增强可见光区域的吸收。另一方面，近红外波段的吸收变差，反之亦然。
