Solar Photovoltaics are the most interesting solution of renewable energy. But because of dust accumulation and subsequent light reflection decreases the efficiency of solar panel. Nanosilica based superhydrophobic coatings can increase efficiency of solar panel by decreasing reflection and increasing cleaning efficiency. Surface roughness and chemical composition are combined to produce superhydrophobic, antireflective and protective surface. Hydrophobic, antireflective coated surfaces are widely used in many industrial applications such as wind shields of automobile, aircrafts, optical lens, solar cells, roofing, agricultural instruments, paints, etc. Four coating solutions have been prepared by varying compositions of Hexamethyldisilazane (HMDS) and polymethylmethacylate (PMMA) prepared by using tetraethylorthosilicate (TEOS) nanosilica sol. These solutions are coated on glass slides by spin coating methods and etched at high temperature. All the coatings were studied for its different properties like water repellence, anti-dust, transparency and contact angle measurements. Stability of coating was also studied with respect to temperature, external environment and pH. The results of the different coatings were observed and compared with each other. All the coatings show worthy results, out of which HT21 is finest in all aspects.

中文翻译：

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基于纳米二氧化硅的超疏水涂料，用于高效自清洁太阳能电池板

太阳能光伏是最有趣的可再生能源解决方案。但是由于灰尘的积累和随后的光反射，降低了太阳能电池板的效率。基于纳米二氧化硅的超疏水涂层可以通过减少反射和提高清洁效率来提高太阳能电池板的效率。将表面粗糙度和化学成分结合在一起以产生超疏水，抗反射和保护性表面。疏水，防反射涂层表面已广泛用于许多工业应用中，例如汽车，飞机，飞机的光学挡风玻璃，太阳能电池，屋顶，农业仪器，油漆等的挡风玻璃。通过改变六甲基二硅氮烷（HMDS）的组成已制备了四种涂层溶液通过使用原硅酸四乙酯（TEOS）纳米二氧化硅溶胶制备的聚甲基丙烯酸甲酯（PMMA）。这些溶液通过旋涂法涂布在载玻片上，并在高温下蚀刻。研究了所有涂料的不同性能，例如防水，防尘，透明性和接触角测量。还针对温度，外部环境和温度对涂层的稳定性进行了研究。p观察并相互比较不同涂层的H.结果。所有涂层均显示出有价值的结果，其中HT21在所有方面均是最好的。