中国物理B ›› 2013, Vol. 22 ›› Issue (10): 106101-106101.doi: 10.1088/1674-1056/22/10/106101
• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇 下一篇
陈明a, 李爽a b, 崔清强a, 刘向东a c
Chen Ming (陈明)a, Li Shuang (李爽)a b, Cui Qing-Qiang (崔清强)a, Liu Xiang-Dong (刘向东)a c
摘要: We describe the fabrication of silicon micro-hemispheres by adopting the conventional laser ablation of single crystalline silicon in the vacuum condition without using any catalysts or additives. The highly oriented structures of silicon micro-hemispheres exhibit many periodic nanoscale rings along their outer surfaces. We consider that the self-organized growth of silicon micro-structures is highly dependent on the laser intensity and background air medium. The difference between these surface modifications is attributed to the amount of laser energy deposited in the silicon material and the consequent cooling velocity.
中图分类号: (Structure of clusters (e.g., metcars; not fragments of crystals; free or loosely aggregated or loosely attached to a substrate))