AFRL∕RWMES, Air Force Research Laboratory, 2306 Perimeter Road, Eglin AFB, Florida 32542, USA.
J Chem Phys. 2013 Aug 7;139(5):054307. doi: 10.1063/1.4817326.
Atomic and molecular clusters are a unique class of substances with properties that differ greatly from those of the bulk or single atoms due to changes in surface to volume ratio and finite size effects. Here, we demonstrate the ability to create cluster matter films using helium droplet mediated cluster assembly and deposition, a recently developed methodology that condenses atoms or molecules within liquid helium droplets and then gently deposits them onto a surface. In this work, we examine magnesium nanocluster films, which exhibit growth behavior comparable to low-energy cluster beam methods, and demonstrate physical properties and morphology dependent on helium droplet size.
原子和分子团簇是一类独特的物质，由于表面与体积比和有限尺寸效应的变化，它们的性质与块状或单个原子有很大的不同。在这里，我们展示了使用氦滴介导的团簇组装和沉积来创建团簇物质膜的能力，这是一种最近开发的方法，它将原子或分子冷凝在液态氦滴内，然后将它们轻轻沉积在表面上。在这项工作中，我们研究了镁纳米团簇膜，其生长行为与低能团簇束方法相当，并证明了物理性质和形态取决于氦滴的大小。
