材料科学
保形涂层
防反射涂料
共形映射
纳米技术
石英晶体微天平
纳米结构
纳米颗粒
图层(电子)
涂层
吸附
数学
数学分析
有机化学
化学
作者
Yi Hou,Zhen Wang,Chao Cai,Xi Hao,Dongdong Li,Ning Zhao,Yiping Zhao,Li Chen,Hongwei Ma,Jian Xu
标识
DOI:10.1002/adma.201704131
摘要
Assembling nanoparticles (NPs) on various surfaces are intensively investigated for the construction of functional nanocoatings; however, it is still a challenge to fabricate conformal nanocoatings uniformly on surfaces having micro- or nanostructures. Herein, it is demonstrated that the negatively charged SiO2 NPs and the positively charged silicon coupling agent can be assembled layer-by-layer on the microstructures based on the combination of electrostatic interaction and condensation reaction. Conformal nanocoatings with controllable thickness are formed on the microstructured surfaces with different compositions and morphologies. The formation mechanism is confirmed by using quartz crystal microbalance with dissipation (QCM-D) to study the assembly process in real time. The universality of this method is illustrated by using other reactive building blocks with opposite charge to build up the conformal nanocoatings. Application in the preparation of antireflective nanocoatings on nonplanar optical materials is demonstrated. This simple, versatile, and scalable strategy for the preparation of conformal nanocoatings is promising for practical applications.
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