Ultra-Wideband and Wide-Angle Perfect Solar Energy Absorber Based on Titanium and Silicon Dioxide Colloidal Nanoarray Structure

In this paper, we designed an ultra-wideband solar energy absorber and approved it numerically by the finite-difference time-domain simulation. The designed solar energy absorber can achieve a high absorption of more than 90% of light in a continuous 3.506 μm (0.596 μm-4.102 μm) wavelength range. Th...

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Bibliographic Details
Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2021-08, Vol.11 (8), p.2040
Main Authors: Wu, Pinghui, Wei, Kaihua, Xu, Danyang, Chen, Musheng, Zeng, Yongxi, Jian, Ronghua
Format: Article
Language:English
Subjects:
Absorption
Absorption spectra
Alternative energy sources
Boundary conditions
Colloids
Crystal structure
Design
Dielectric properties
Energy
Finite difference time domain method
High temperature
Light
Melting point
Melting points
Metals
Photovoltaic cells
Radiation
refractory metal
Silica
silica colloidal nanoarrays
Silicon
Silicon dioxide
Solar energy
solar energy absorber
Solar energy absorbers
surface plasmon resonance
Titanium
ultra-broadband perfect absorption
Ultrawideband
Wavelength
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Summary:In this paper, we designed an ultra-wideband solar energy absorber and approved it numerically by the finite-difference time-domain simulation. The designed solar energy absorber can achieve a high absorption of more than 90% of light in a continuous 3.506 μm (0.596 μm-4.102 μm) wavelength range. The basic structure of the absorber is based on silicon dioxide colloidal crystal and Ti. Since the materials have a high melting point, the designed solar energy absorber can work normally under high temperature, and the structure of this solar energy absorber is simpler than most solar energy absorbers fabricated with traditional metal. In the entire wavelength band researched, the average absorption of the colloidal crystal-based solar energy absorber is as high as 94.3%, demonstrating an excellent performance under the incidence light of AM 1.5 solar spectrum. In the meantime, the absorption spectrum of the solar energy absorber is insensitive to the polarization of light. In comparison to other similar structures, our designed solar energy absorber has various advantages, such as its high absorption in a wide spectrum range and that it is low cost and easy to make.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano11082040