PREPARATION AND PERFORMANCE STUDY OF SILICON DIOXIDE SUPERHYDROPHOBIC THIN FILMS SUITABLE FOR PHOTOVOLTAIC MODULE SURFACES

Wang Haozhu; Liu Yifei; Shang Chenbo; Li Haoyi; Li Le; Cai Binbin

doi:10.19912/j.0254-0096.tynxb.2024-2069

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (3) : 760-767. DOI: 10.19912/j.0254-0096.tynxb.2024-2069

PREPARATION AND PERFORMANCE STUDY OF SILICON DIOXIDE SUPERHYDROPHOBIC THIN FILMS SUITABLE FOR PHOTOVOLTAIC MODULE SURFACES

Wang Haozhu¹, Liu Yifei¹, Shang Chenbo¹, Li Haoyi¹, Li Le¹, Cai Binbin²

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Abstract

To obtain SiO₂ superhydrophobic thin films suitable for photovoltaic module surfaces, an improved Stober method was used to prepare MTES/TEOS hybrid sol and different amounts of HMDS were added for hydrophobic modification. Finally, SiO₂ thin films were prepared by the impregnation method. Morphology and structure, optical properties, surface properties, and self-cleaning performance tests were conducted on the prepared thin film, and artificial accelerated aging tests were conducted on the films to obtain changes in their properties. The results showed that when HMDS/SiO₂=3, the transmittance of the film was 92.30%, the water contact angle could reach 165.28°, the surface energy was only 1.06 mJ/m², and the self-cleaning effect was excellent. The degree of change in transmittance and water contact angle caused by 1500 hours of photoaging and high-temperature aging was less than 5%. The comprehensive performance of the thin films meets the application requirements of photovoltaic module surfaces and has broad prospects in the field of photovoltaics.

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superhydrophobicity / thin film / optical properties / aging characteristics / photovoltaic modules

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Wang Haozhu, Liu Yifei, Shang Chenbo, Li Haoyi, Li Le, Cai Binbin. PREPARATION AND PERFORMANCE STUDY OF SILICON DIOXIDE SUPERHYDROPHOBIC THIN FILMS SUITABLE FOR PHOTOVOLTAIC MODULE SURFACES[J]. Acta Energiae Solaris Sinica. 2026, 47(3): 760-767 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2069

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