纳米“鸡蛋盒”的简易新制法

A New and Simple Method to Prepare Egg-box Like Nanostructure

利用氧化铝模板,在聚苯乙烯玻璃化转变温度附近,采用气压方法抽取聚苯乙烯纳米膜,得到类似"鸡蛋盒"的纳米结构。用原子力显微镜观察了聚苯乙烯纳米膜的表面形貌。在最佳气体压力20 kPa下,可得到9个/μm2纳米"鸡蛋盒",其深度约为15 nm,随压力增大或减小,单位面积上纳米"鸡蛋盒"的个数均降低。

Nanostructured egg-box was obtained through placing an air pressure on polystyrene（PS） nano film using an anodic aluminum oxide（AAO） membrane as the template.The surface morphology of PS film was studied by means of atomic force microscopy（AFM）.The results showed that air pressure affected the morphology of PS film.There is an optimal pressure to achieve egg-box with a maximal density about 9 per μm2.The depth of the egg-box like nanostructure is about 15 nm.The density of egg-box decreases with the increase or decrease the pressure.