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Demonstrates enhanced power generation efficiency in photovoltaic setups, suggesting effective anti-soiling solutions.
Surface contamination on photovoltaic glass severely degrades its power‐generation efficiency, thereby making the development of transparent anti‐soiling coatings an important research direction. Herein, a poly (methylmethacrylate)/1H,1H,2H,2H‐perfluorooctyltriethoxysilane/SiO 2 (PMMA/PFOTS/SiO 2 ) organic–inorganic hybrid transparent superhydrophobic anti‐fouling coating is developed via a one‐step sol–gel method. The coating exhibits a stable Cassie‐Baxter state with high water contact angle (155.2° ± 1.1°) and a low sliding angle (4.8° ± 0.7°), demonstrating excellent superhydrophobic characteristics. Optical tests demonstrate an average transmittance of 87.6% in the 400–2500 nm range and only 8.3% external quantum efficiency (EQE) attenuation at 800 nm compared to photovoltaic devices, significantly outperforming commercial superhydrophobic coatings (58.3% attenuation). This enables synergistic gains in dust resistance and photon capture efficiency. Additionally, after 24 h immersion in alkaline solution, the coating hydrophobicity is enhanced, with WCA increasing to 165.1° ± 1.4°. We believe that the designed superhydrophobic coating with integrated functionalities of self‐cleaning, high transmittance, and alkali‐induced self‐enhancement can provide important solutions for maximizing the long‐term power generation efficiency of photovoltaic glass in complex outdoor environments.
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Du et al. (2026) studied this question.
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