Enhanced photoelectric conversion performance of photovoltaic cells based on superhydrophobic sunlight-reflective film

IF 6 2区工程技术 Q2 ENERGY & FUELS

Solar Energy Pub Date : 2025-09-15 DOI:10.1016/j.solener.2025.113953

Rongzhang Qiu , Zi Wang , Jiale Li , Qiang Fu , Yang Cao , Si Wu , Youyi Sun

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Abstract

A new superhydrophobic sunlight-reflective film is designed and prepared for improving power generation of photovoltaic cells. The film is composed of n-octyltriethoxysilane modified silicon (OTS@SiO₂) top layer, TiO₂ doping epoxy resin (TiO₂/EP) intermediate layer and polyethylene terephthalate (PET) substrate film. These provide superhydrophobicity, sunlight-reflection and mechanical stability, respectively. As a result, it can simultaneously obtain good superhydrophobicity (water contact angle >150°) and high sunlight reflectivity (>80 %). Furthermore, the effect of superhydrophobicity and sunlight reflectivity on power generation of photovoltaic cells is investigated and evaluated. It is found that the power generation of photovoltaic cells can be improved to more than 5.0 % in the presence of superhydrophobic sunlight-reflective film. The work provides a promising and facile strategy to enhance power generation of photovoltaic cells.

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超疏水反射膜增强光伏电池光电转换性能

为提高光伏电池的发电性能，设计并制备了一种新型超疏水反射膜。该薄膜由正辛基三乙氧基硅烷改性硅（OTS@SiO2）顶层、TiO2掺杂环氧树脂（TiO2/EP）中间层和聚对苯二甲酸乙二醇酯（PET）衬底膜组成。它们分别具有超疏水性、阳光反射性和机械稳定性。因此，它可以同时获得良好的超疏水性（水接触角>；150°）和较高的太阳光反射率（> 80%）。此外，还研究了超疏水性和太阳光反射率对光伏电池发电性能的影响。研究发现，在超疏水反射膜的存在下，光伏电池的发电效率可提高到5.0%以上。这项工作为提高光伏电池的发电能力提供了一种有前途的、简便的策略。

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来源期刊

Solar Energy 工程技术-能源与燃料

CiteScore

13.90

自引率

9.00%

发文量

审稿时长

47 days

期刊介绍： Solar Energy welcomes manuscripts presenting information not previously published in journals on any aspect of solar energy research, development, application, measurement or policy. The term "solar energy" in this context includes the indirect uses such as wind energy and biomass