Size-dependent propagation of Au nanoclusters through few-layer graphene
Size-dependent propagation of Au nanoclusters through few-layer graphene
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DOI：
10.1039/c3nr04770a
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发表时间：
2014-01-01
期刊：
影响因子：
6.7
通讯作者：
Palmer, Richard E.
中科院分区：
文献类型：
--
作者：
Plant, Simon R.;Cao, Lu;Palmer, Richard E.
我们报道了金纳米团簇通过少层石墨烯（FLG）的尺寸依赖性传播。我们采用像差校正的扫描透射电子显微镜（STEM）跟踪的命运Au-55和Au-923集群已被沉积，独立和等能量，到悬浮FLG膜使用集群束沉积。我们证明，Au-55簇穿透FLG，而单分散的Au-923簇驻留在表面。我们的方法提供了一条路线，以控制掺入掺杂剂纳米颗粒和石墨烯中纳米级缺陷的产生。
We report the size-dependent propagation of gold nanoclusters through few-layer graphene (FLG). We employ aberration-corrected scanning transmission electron microscopy (STEM) to track the fate of Au-55 and Au-923 clusters that have been deposited, independently and isoenergetically, onto suspended FLG films using cluster beam deposition. We demonstrate that Au-55 clusters penetrate through the FLG, whereas the monodisperse Au-923 clusters reside at the surface. Our approach offers a route to the controlled incorporation of dopant nanoparticles and the generation of nanoscale defects in graphene.