Chem. J. Chinese Universities ›› 2019, Vol. 40 ›› Issue (11): 2274.doi: 10.7503/cjcu20180849

• Inorganic Chemistry • Previous Articles     Next Articles

Sol-gel Preparation of Anti-Fogging SiO2/SiO2-TiO2 Double-layer Antireflective Coating

YE Longqiang1,*(),KANG Shuo1,ZHANG Weihao1,ZHANG Yulu1,HUI Zhenzhen1,JIANG Bo2   

  1. 1. College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu 233030, China
    2. College of Chemistry, Sichuan University, Chengdu 610064, China
  • Received:2018-12-17 Online:2019-11-10 Published:2019-10-18
  • Contact: YE Longqiang E-mail:yelq@ahstu.edu.cn
  • Supported by:
    ? Supported by the Natural Science Foundation of Anhui Province, China(1908085QF277);The Key Discipline Project of Anhui Science and Technology University, China(AKZDXK2015AO1);The Student Innovation and Entrepreneurship Foundation of Anhui Science and Technology University, China(2017X053)

Abstract:

SiO2/SiO2-TiO2 double-layer antireflective(AR) coating with high transmittance and excellent mechanical property was designed and prepared by sol-gel method based on the intrinsically robust sol-gel acid-catalyzed SiO2 and TiO2 thin films. It was found that the maximum transmittance of the obtained double-layer antireflective coating reached 99.9%, well in accordance with the simulated one. After abrasion and hardness test, the transmittance spectra all changed little compared with the original one; and this double-layer AR coating could withstand the 4H pencil hardness test, showing an excellent mechanical property. Moreover, this double-layer coating was superhydrophilic, hence the coating possessed excellent anti-fogging property. The high transmittance, excellent mechanical and anti-fogging property make this double-layer Si O 2 / Si O 2 - Ti O 2 AR coating an alternative candidate in the field of solar cells.

Key words: Thin film design, Double-layer antireflective coating, Mechanical property, Superhydrophilicity, Anti-fogging property

CLC Number: 

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