Large-sized ultra-black films with a light trapping structure were prepared. A low reflectivity of <1.0% was measured in the visible region. A high solar-thermal conversion efficiency of 88.37% was observed. The films could maintain the efficiency even under extreme conditions.
Due to the low reflectance and high light-harvesting properties of UBMs, silicon-based materials with special nanostructures have been widely studied to improve the photoelectric conversion efficiency of solar cells [ , , ].
The ultra-black coating based on carbon nanotube (CNT) and carbon black particles could have total absorption of up to 99% in the visible region by constructing unique surface nanostructures [ 18 ]. These unique properties of high absorption are attributed to the artificial surface textures rather than the materials'' natural structures.
1. Introduction Ultra-black materials (UBMs) have been fabricated with various methods [ , , , , , , , ] and are now widely used in many fields including photovoltaics [ 9, 10 ], stray light shields [ 11 ], energy harvesting [ 12, 13 ], and military detection and protection [ 14, 15 ].
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Designed for flat-plate and evacuated tube solar collectors, this premium coating film features a matte black finish with exceptional adhesion, corrosion resistance, and UV stability—ideal for …
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A special surface structure is required to achieve ultra-black absorption for efficient solar-thermal conversion. However, such a structure developed so far suffers from deficiencies …
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3M solutions for thin film modules range from conductive and dielectric tapes that collect and route electrical charge to enhance the solar module.
EVA films are a key material used for traditional solar panel lamination. What are ethylene vinyl acetate (EVA) films? In the solar industry, the most …
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Solar roof tiles and BIPV demand 30-year permanence. Ceramic all-black panels with back-contact cells deliver. Custom manufacturing for architectural projects.
The black film on solar panels serves a crucial purpose in enhancing performance and efficiency, primarily related to 1. heat absorption, 2. light absorption, 3. material choice, …
A special surface structure is required to achieve ultra-black absorption for efficient solar-thermal conversion. However, such a structure developed …
Thin film panels feature peel-and-stick adhesive that eliminates the need to drill holes in the roof. What’s in this guide: This guide …
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