摘要
结合当前塑料基材表面构建减反射结构的现状和趋势,使用COMSOL Multiphysics软件在可见光谱范围内研究了中空二氧化硅粒子(HSP)和HSP-实心二氧化硅粒子混合对所构成的减反射表面的光学性能的影响。具体考察的因素包括:HSP的尺寸、空心度、粒子间距、树脂覆盖高度、入射角和排布方式等几何参数。结果表明,当采用半径为100 nm的HSP,且树脂覆盖粒子一半高度时,在六方格子排布的HSP间隙掺入小尺寸实心二氧化硅粒子,可在整个可见光谱范围内获得较低的反射率,涂层的平均反射率可低至0.24%。
Objective Anti-reflection(AR)is important in enhancing the display effect of display panels and the photovoltaic conversion efficiency of solar cells.The construction of AR structures using hollow silica(SiO2)particles(HSPs)as an effective method has been attracting related researchers.Plastic substrates,represented by polycarbonate(PC)and polymethyl methacrylate(PMMA),have broad market potential in replacing inorganic glass.However,due to the great differences between the surface properties of plastic substrates and inorganic materials,many AR coating technologies that can be easily industrialized on inorganic materials are difficult to be transferred to plastic substrates.In this context,a big challenge in constructing AR structures on plastic substrates is how to fix HSPs on organic substrates at low temperatures.Anchoring HSPs with low-temperature curable resin is a very promising strategy for industrialization with low cost and easy operation.However,the quality of AR coatings prepared by this strategy is greatly affected by the physical and chemical properties of the coating solution and the complex hydrodynamic effects during coating and drying.Many factors should be considered and optimized to obtain AR coatings with excellent performance.There are too many uncertain factors,long optimization cycle,and poor repeatability and reliability,so optimizing conditions by experimental methods willbe time-consuming and laborious.In contrast,optimizing the surface structures through simulations has incomparable advantages over traditional experimental strategies.The simulation results can point out the direction for further experimental research and accelerate experimental processes.Methods The effects of HSPs and HSP-solid SiO2 particle hybrid on the optical properties of as-prepared AR surfaces in the visible light range are studied by COMSOL Multiphysics.Some specific factors are examined,including the diameter of HSPs,hollowness degree,spacing between particles,resin coverage height,incidence angle,and particle
作者
王宇
雷洪
李晓红
Wang Yu;Lei Hong;Li Xiaohong(School of Materials and Chemistry,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China;School of Mathematics and Physics,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2023年第9期301-309,共9页
Acta Optica Sinica
基金
西南科技大学龙山学术人才科研支持计划(17LZX601,18LZX547)。
