Lee Cheng Hao, Yu Jiali, Wang Yanming, Tang Alan Yiu Lun, Kan Chi Wai, Xin John H
Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong SAR China.
Institute of Textile and Clothing, The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong SAR China
RSC Adv. 2018 May 4;8(30):16593-16602. doi: 10.1039/c8ra02235f. eCollection 2018 May 3.
In this study, the inclusion of graphene oxide in silica photonic crystals was found to affect optical reflectance intensity and reflectance peak broadening. The quantitative relationship between weight percentage and the reflected light intensity and corresponding wavelength shift of light GO-decorated photonic crystals was studied, providing a useful parameter in the rational design of antireflection coatings for GO-based photonic crystal films. Comparison of the experimental results with a pure SiO particle film shows that a SiO particle surface layer incorporated with a fixed graphene oxide weight percentage results in broadening of the peak and a decrease in reflectance intensity. The percentage of the reduction in reflectance intensity is a function of particle size, as indicated by the structured color film surface, demonstrating the possibility of estimating the effect of different graphene oxide inclusion percentages on the antireflection properties of photonic crystal films.
在本研究中，发现二氧化硅光子晶体中包含氧化石墨烯会影响光反射强度和反射峰展宽。研究了重量百分比与氧化石墨烯修饰的光子晶体的反射光强度及相应的光波长偏移之间的定量关系，为基于氧化石墨烯的光子晶体薄膜抗反射涂层的合理设计提供了一个有用的参数。将实验结果与纯二氧化硅颗粒薄膜进行比较表明，掺入固定重量百分比氧化石墨烯的二氧化硅颗粒表面层会导致峰展宽和反射强度降低。如结构色膜表面所示，反射强度降低的百分比是粒径的函数，这表明可以估计不同氧化石墨烯掺入百分比对光子晶体薄膜抗反射性能的影响。
