Mondal Shyamal, Satpati B, Bhattacharyya S R
J Nanosci Nanotechnol. 2015 Jan;15(1):611-5. doi: 10.1166/jnn.2015.8908.
Deposition of size-selected metal nanoclusters on a substrate with very low kinetic energy helps to keep the clusters intact with respect to their shapes and sizes as compared to clusters in flight condition. Here we report formation of monodispersed films of size-selected copper nanoclusters (diameter -3 nm) that are produced in a magnetron based gas aggregation type source equipped with a quardrupole mass filter (QMF) to select sizes of clusters before landing. Transmission Electron Microscopy (TEM) study shows that the size-distributions of isolated islands peaks around the selected size of clusters and consequently the diffusion of these nano-scale islands is very low.
与飞行状态下的团簇相比，以非常低的动能将尺寸选择的金属纳米团簇沉积在基底上有助于保持团簇在形状和尺寸方面的完整性。在此，我们报告了尺寸选择的铜纳米团簇（直径约3纳米）单分散薄膜的形成，这些团簇是在配备四极质量过滤器（QMF）的磁控管基气体聚集型源中产生的，以便在着陆前选择团簇尺寸。透射电子显微镜（TEM）研究表明，孤立岛的尺寸分布在所选团簇尺寸附近出现峰值，因此这些纳米级岛的扩散非常低。
