Cone-shaped resonator-based highly efficient broadband polarization- independent metamaterial absorber for solar energy harvesting

Abstract

We propose a highly efficient, low-cost metamaterial absorber of nickel (Ni) metal-based cone-shaped resonators with a silicon dioxide dielectric layer (SiO2). The proposed absorber exhibits an average absorption of 97% for the transverse magnetic (TM) and transverse electric (TE) modes over the visible region which is simulated by CST software. The nickel-metal impedance coincides with the impedance of free space and makes the proposed design an effective broadband absorber in the visible region. The average absorption with different incidence angles obtains over 90% and shows the polarization angles' independence. The average absorption spectra are also examined for the absorber with different noble metals. In addition, short-circuit current densities (Jsc) are calculated at different incidence angles for both modes under a global air mass of 1.5 (AM1.5). We have also plotted the J–V curve to obtain the values of the open-circuit voltage (Voc), Fill Factor, and conversion efficiency (η), whose values are 0.563V, 81.86%, and 11.68%, respectively. The proposed metamaterial absorber can be utilized to develop more reliable, highly efficient, cost-effective, and maximum-power extraction photovoltaic systems.

Application of Metamaterial in Renewable Energy: A Review

“…Many new models are ecofriendly and much cheaper and thinner than traditional silica (SiO2) solar cells. There are also inexpensive metals like iron, cobalt, and nickel that occur naturally which are instead used to create new metamaterial absorbers such as the saw-tooth coating, absorbing screens and the Cone-shaped resonator (Kumar et al, 2022). Recent advancements in computerized simulations and testing have yielded promising results, indicating that solar power generation companies should consider integrating the aforementioned metamaterial technologies.…”

Photovoltaic and Photothermal Solar Cell Design Principles: Efficiency/Bandwidth Enhancement and Material Selection

“…To evaluate the performance of the solar cell, its absorption spectrum is compared with the AM1.5 solar radiation spectrum, as in Figure 2b [23]. The short circuit current density of the solar energy for AM1.5 is defined as [25]:…”