Enhanced optical performance of solar cell using hydrophobic SnO2/TEOS/MTMS antireflection coating

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2024-06-12 DOI:10.1002/ep.14436

N. R. Chandralekha, J. Shanthi, R. Swathi, K. K. Anoop

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Abstract

Anti-reflection coatings have potential usage in photovoltaic solar cells, sensors, and display devices to reduce reflectance, glare and enhance light transmission. ARC was developed to increase more efficiency of solar cell cover glasses, by depositing SnO₂/TEOS/MTMS coating using the sol–gel spin coating technique. The coating showed a maximum transmittance of 92.70% at 399 nm wavelength with an average refractive index of 1.42. The transmittance of the antireflective film was increased by 2.29% than the bare glass substrate. The surface morphology of the coatings was investigated using FESEM analysis. The mechanical stability of the coating was evaluated using ASTM standard D 3363–05 pencil scratch test, and it demonstrated good performance against 3H hardness pencil. The efficiency of solar cells has been increased by 1.56% after depositing with single layer SnO₂/TEOS/MTMS film. Moreover, the coating maintains the solar cell's performance even during dust exposure, because of its self-cleaning ability with water contact angle of 94°. Thus, the Anti-reflection coating can be applied to enhance the efficiency of photovoltaic system.

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使用疏水性 SnO2/TEOS/MTMS 防反射涂层提高太阳能电池的光学性能

抗反射涂层可用于光伏太阳能电池、传感器和显示设备，以减少反射、眩光和提高透光率。为了提高太阳能电池盖板玻璃的效率，我们利用溶胶-凝胶旋涂技术沉积了 SnO2/TEOS/MTMS 涂层，开发了 ARC。涂层在 399 纳米波长处的最大透射率为 92.70%，平均折射率为 1.42。抗反射膜的透射率比裸玻璃基板提高了 2.29%。使用 FESEM 分析法研究了涂层的表面形貌。使用 ASTM 标准 D 3363-05 铅笔划痕测试评估了涂层的机械稳定性，结果表明涂层在 3H 硬度铅笔划痕测试中表现良好。沉积单层 SnO2/TEOS/MTMS 薄膜后，太阳能电池的效率提高了 1.56%。此外，即使在灰尘暴露的情况下，涂层也能保持太阳能电池的性能，因为它具有自清洁能力，水接触角高达 94°。因此，抗反射涂层可用于提高光伏系统的效率。

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