Anti-Reflection Functionalization of Na2O-CaO-SiO2 Flat Glass

Abstract

Abstract: With the rapid development of photovoltaic industry in recent years, anti-reflective glass comes into researchers' sight. This article uses two-step chemical etching method to prepare Na₂O-CaO-SiO₂ flat glass with anti-reflective properties. The transmittance, surface morphology, cross-section film thickness, surface chemical composition, acid resistance and hardness of samples were measured by spectrophotometer, scanning electron microscope, atomic force microscope and X-ray energy spectrometer. The relationship between reaction temperature, reaction time, glass film structure and transmittance were studied. The Si—O bonds on Na₂O-CaO-SiO₂ flat glass surface were broken by etching glass surface with weakly alkaline mixed salt solution, and a nano film structure is formed on the surface of glass. When the corrosion reaches a certain thickness, destructive interference of a certain wavelength of light occurs on glass surface, with a maximum transmittance of 97.8%. The glass composition remains basically unchanged before and after etching, and the pencil hardness reaches 3H.

Key words: anti-reflection glass, transmittance, Na₂O-CaO-SiO₂ flat glass, wet chemical two-step etching method, surface micro-crack, crack extension

CLC Number:

TQ171

HAO Xia, WANG Qichen, FU Youjie, LI Junge, ZHAO Huifeng, JIANG Hong, WANG Zhuo. Anti-Reflection Functionalization of Na₂O-CaO-SiO₂ Flat Glass[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(4): 1366-1373.

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Anti-Reflection Functionalization of Na₂O-CaO-SiO₂ Flat Glass

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