Abstract
We built the solar design in plus-shaped and four rectangles are surrounded at the corner. Chromium (Cr) is used as the top resonator as well as the back reflector and the Indium antimonide (InSb) is used as the substrate layer. The proposed absorber can harvest between 0.2 μm and 3 μm of radiation. To show the absorptance exactly, the six peak wavelengths have been mentioned. The solar absorption can provide above 90% in 2800 nm bandwidth and 95% with 400 nm and 800 nm respectively. The average solar absorptance for all regions is 93.1%. The parameter variation can be studied by changing the thickness of the ground, substrate, and resonator layers. Moreover, the width of the ground plane and chemical potential can be changed. Angle varying from 0 to 80°, Transverse Electric (TE) and also Transverse Magnetic (TM) sections have been presented. The electric field intensity situation for solar absorptance has been also included. The comparison between absorptance of the developed structure and previous works are compared in Table 1. The current solar absorber can provide in many applications of optical and electronic devices such as antenna-coupled infrared detector fabrication, optoelectronic devices, and photo-electric devices.
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