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Antireflective and Self-Cleaning Properties of SiO2-MgF2/TiO2 Double-Layer Films Prepared by Sol-Gel Method at Low Calcination Temperature

Published online by Cambridge University Press:  26 January 2017

Hung-Chou Liao*
Affiliation:
Industrial Technology Research Institute, 195, Sec. 4, Chung Hsing Rd., Chutung, Hsinchu, Taiwan 310, R.O.C.
Sheng-Min Yu
Affiliation:
Industrial Technology Research Institute, 195, Sec. 4, Chung Hsing Rd., Chutung, Hsinchu, Taiwan 310, R.O.C.
Wen-Ching Sun
Affiliation:
Industrial Technology Research Institute, 195, Sec. 4, Chung Hsing Rd., Chutung, Hsinchu, Taiwan 310, R.O.C.
Wan-Ying Chou
Affiliation:
Industrial Technology Research Institute, 195, Sec. 4, Chung Hsing Rd., Chutung, Hsinchu, Taiwan 310, R.O.C.
Shou-Yi Ho
Affiliation:
Industrial Technology Research Institute, 195, Sec. 4, Chung Hsing Rd., Chutung, Hsinchu, Taiwan 310, R.O.C.
Tzu-Yu Wang
Affiliation:
JM Material Technology Inc, O. 5F.-3, No.40-2, Sec.1, Minsheng N.Rd.,Guishan Township, Taoyuan County, Taiwan 333, R.O.C.
Wei-Jen Lu
Affiliation:
JM Material Technology Inc, O. 5F.-3, No.40-2, Sec.1, Minsheng N.Rd.,Guishan Township, Taoyuan County, Taiwan 333, R.O.C.
Li-Fang Lu
Affiliation:
JM Material Technology Inc, O. 5F.-3, No.40-2, Sec.1, Minsheng N.Rd.,Guishan Township, Taoyuan County, Taiwan 333, R.O.C.
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Abstract

SiO2-MgF2/TiO2 double-layer films with antireflective, self-cleaning and adherent properties were prepared by spin-coating SiO2-MgF2 and TiO2 sol on glass substrate successively and subsequently being calcined at 250°C. The optical and structural properties of films have been investigated by visible spectrophotometer and field emission scanning electron microscope, respectively. At the same time, self-cleaning property generated from superhydrophilicity and photocatalysis was obtained. The results indicated that the as-prepared SiO2-MgF2/TiO2 double-layer films show a maximum increase in transmittance near 520 nm wavelength of 2.8% and photocatalytic property with the R value of 4.7(JIS R 1703–2).It has been demonstrated that high transmittance, self-cleaning and adherent composite has been obtained by a simple sol–gel route presenting good potential to be applied on photovoltaics systems.

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Articles
Copyright
Copyright © Materials Research Society 2017 

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References

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Antireflective and Self-Cleaning Properties of SiO2-MgF2/TiO2 Double-Layer Films Prepared by Sol-Gel Method at Low Calcination Temperature
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