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Fabrication of single-layer antireflective coating with environmental stability by modified SiO2 mixed sol
Colloids and Surfaces A: Physicochemical and Engineering Aspects ( IF 4.9 ) Pub Date : 2021-09-16 , DOI: 10.1016/j.colsurfa.2021.127553
Xiaoyu Li 1 , Yong Zheng 1 , Xiangyu Xu 1 , Chaogang Xue 1 , Zishen Han 1 , Huimin Yang 1 , Xi Zhang 1
Affiliation  

The single-layer antireflective coating (ARC) is fabricated by sol-gel method using mixed sol modified by methyltriethoxysilane (MTES) hydrolyzed sol. The surface morphologies and structure, optical properties and wetting behavior are affected by the amount of MTES hydrolyzed sol are investigated. Via dip coating the modified sol on glass substrates, environmental stability and mechanical properties are also examined. In the modification process, the ARC exhibits a hydrophobic surface with a highest water contact angle (WCA) of 126.53°. Sand adhered to coating could be easily washed away, confirming that the ARC exhibits prominent self-cleaning property. Moreover, the ARC appears excellent in environmental stability. After the 30-day damp test and self-cleaning test, the attenuation of solar-weighted transmittance (Тsw) is only 0.04% and 0.02%, respectively. Additionally, this ARC exhibits a total solar-weighted transmittance (Тsw) higher than 95.06% over a wavelength range of 380–1100 nm, significantly higher than those of bare glass substrates (Тsw=91.5%). The ARC has highly promising applicability in the solar fields.



中文翻译:

改性SiO2混合溶胶制备具有环境稳定性的单层增透膜

单层抗反射涂层(ARC)是通过溶胶-凝胶法使用甲基三乙氧基硅烷(MTES)水解溶胶改性的混合溶胶制备的。研究了表面形貌和结构、光学性质和润湿行为受 MTES 水解溶胶量的影响。通过在玻璃基材上浸涂改性溶胶,还检查了环境稳定性和机械性能。在改性过程中,ARC 呈现出疏水表面,最高水接触角 (WCA) 为 126.53°。附着在涂层上的沙子很容易被冲走,证实了 ARC 具有显着的自清洁性能。此外,ARC在环境稳定性方面显得优异。经过30天的潮湿试验和自洁试验后,太阳加权透射率(Тsw ) 分别仅为 0.04% 和 0.02%。此外,该 ARC在 380-1100 nm 的波长范围内表现出高于 95.06%的总太阳能加权透射率 ( Т sw ),显着高于裸玻璃基板 ( Т sw = 91.5%)。ARC在太阳能领域具有非常广阔的应用前景。

更新日期:2021-09-24
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