Deng Lier, Fu Ming, Tao Yinglei, Guo Xiaoyun
J Nanosci Nanotechnol. 2014 Jun;14(6):4622-5. doi: 10.1166/jnn.2014.8054.
A simple approach is presented for the fabrication of poly(methyl methacrylate) (PMMA) nanobowl arrays over cm2 areas using SiO2 colloidal crystal templates. SiO2 colloidal crystal templates were prepared on a clean glass substrate by self-assembled SiO2 spheres of 410 nm in diameter. The air between the silica spheres was filled by the superfluous monomer of PMMA that can be subsequently polymerized. After infiltration, the SiO2-PMMA templates were immersed in a 3 wt% hydrofluoric acid (HF) aqueous solution. After 24 h, silica spheres were etched and a free-standing nanobowl sheet was obtained. The size of the nanobowls could be controlled by the size of the SiO2 spheres and the area of the nanobowl sheet could be altered by the size of the glass substrate.
本文提出了一种简单的方法，用于使用二氧化硅（SiO₂）胶体晶体模板在平方厘米面积上制备聚甲基丙烯酸甲酯（PMMA）纳米碗阵列。通过直径为410nm的自组装SiO₂球体在干净的玻璃基板上制备SiO₂胶体晶体模板。PMMA的多余单体填充了二氧化硅球体之间的空气，随后该单体可以聚合。渗透后将SiO₂-PMMA模板浸入3wt%的氢氟酸（HF）水溶液中。24小时后，蚀刻二氧化硅球体，得到独立的纳米碗片。纳米碗的尺寸可以通过SiO₂球体的尺寸来控制，纳米碗片的面积可以通过玻璃基板的尺寸来改变。
