论文标题
SIO $ _2 $/SI腔中的GA液滴的润湿：申请自助GAAS纳米线增长
Wetting of Ga droplets in SiO$_2$/Si cavities: Application to self-assisted GaAs nanowire growth
论文作者
论文摘要
在本文中，我们计算和比较各种液滴润湿各种构型的圆柱腔的表面能。尽管对于这些配置中的某些配置，但可以明确计算表面能量，以计算其他配置。在圆柱腔获得的结果的激励下，我们探索了更现实的情况，即圆锥形的腔。我们的结果提供了圆锥形腔的几何形状与底部和腔侧壁上的液滴的平衡润湿角之间的关系，以确保侧面的脱孔。这是通过蒸气液体固体方法控制纳米线生长过程中垂直度的重要结果。
In this paper we compute and compare the surface energy of various Ga liquid droplets wetting a cylindrical cavity in various configurations. While for some of these configurations the surface energy can be computed explicitely for others numerical computation is needed. Motivated by the results obtained for the cylindrical cavities we explore the case of the more realistic situation, conical cavities. Our results provide a relation between the geometry of the conical cavity and the equilibirum wetting angles of the droplet on the bottom and on the sidewall of the cavity which insure the dewetting of the lateral surface. This is an important result toward the control of the verticality during the nanowire growth by the vapor liquid solid method.
