Diffusion and aggregation of size-selected silver clusters on a graphite surface
Diffusion and aggregation of size-selected silver clusters on a graphite surface
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DOI：
10.1063/1.116854
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发表时间：
1996-11-04
影响因子：
4
通讯作者：
Palmer, RE
中科院分区：
文献类型：
--
作者：
Goldby, IM;Kuipers, L;Palmer, RE
我们研究了薄膜生长的早期阶段，通过在石墨上沉积尺寸选定的银簇，作为入射簇大小的函数。对于每团簇50到250个原子的所有尺寸，沉积的团簇都是可移动的，并结合成三维粒子，“通用”直径接近14纳米，可能是银和石墨之间晶格应变的结果。14nm颗粒主要以小聚集体形式存在，说明其本身具有一定的可移动性。我们还发现了粒子迁移率受团簇撞击角影响的证据。(C) 1996年美国物理研究所。
We have investigated the early stages of film growth via deposition of size-selected silver clusters on graphite, as a function of incident cluster size. For all sizes from 50 to 250 atoms per cluster, the deposited clusters are mobile and coalesce into three-dimensional particles with a ''universal'' diameter of approximate to 14 nm, possibly a consequence of lattice strain between the silver and graphite. The 14 nm particles are found mainly in small aggregates, indicating that they themselves are to some degree mobile. We have also found evidence that the particle mobility is influenced by the cluster impact angle. (C) 1996 American Institute of Physics.