Ye Xin, Huang Jin, Zeng Yong, Sun Lai-Xi, Geng Feng, Liu Hong-Jie, Wang Feng-Rui, Jiang Xiao-Dong, Wu Wei-Dong, Zheng Wan-Guo
Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China.
Hefei Institute of Physical Science, Chinese Academy of Science, Hefei 230031, China.
Nanomaterials (Basel). 2017 Sep 25;7(10):291. doi: 10.3390/nano7100291.
Hexagonally ordered arrays of polystyrene (PS) microspheres were prepared by a modified air-water self-assembly method. A detailed analysis of the air-water interface self-assembly process was conducted. Several parameters affect the quality of the monolayer colloidal crystals, i.e., the colloidal microsphere concentration on the latex, the surfactant concentration, the polystyrene microsphere diameter, the microsphere polydispersity, and the degree of sphericity of polystyrene microspheres. An abrupt change in surface tension was used to improve the quality of the monolayer colloidal crystal. Three typical microstructures, i.e., a cone, a pillar, and a binary structure were prepared by reactive-ion etching using a high-quality colloidal crystal mask. This study provides insight into the production of microsphere templates with flexible structures for large-area patterned materials.
通过改进的气-水自组装方法制备了聚苯乙烯(PS)微球的六角有序阵列。对气-水界面自组装过程进行了详细分析。有几个参数会影响单层胶体晶体的质量,即乳胶上的胶体微球浓度、表面活性剂浓度、聚苯乙烯微球直径、微球多分散性以及聚苯乙烯微球的球形度。利用表面张力的突然变化来提高单层胶体晶体的质量。使用高质量的胶体晶体掩膜通过反应离子刻蚀制备了三种典型的微结构,即圆锥、柱状和二元结构。本研究为大面积图案化材料的具有灵活结构的微球模板的制备提供了思路。