大直径聚苯乙烯小球自组织方法制备高质量opal晶体

Preparation of high-quality large diameter polystyrene spheres opal by self-assembly method

通过改进样品池的结构和其他实验条件 ,用气压法制备了大直径聚苯乙烯小球 (直径为 1μm和 70 0nm)的人造蛋白石 (opal)样品 ,并测量了其能带特性 .对于制备能带位置在红外波段的三维光子晶体 ,这一实验结果将有很广阔的用途 .

By upgrading the cell's structure and other conditions in experiment,we have prepared the large diameter (1μm and 700nm)artificial opal crystals with the operation of the nitrogen pressure and gently rock,and measured the samples' band gap property.This experimental result will be useful in preparation of the photonic crystal with infrared band gap.