Preparation and Observation of an Atomic Layer of Gold Formed on the Surface of Graphene
Preparation and Observation of an Atomic Layer of Gold Formed on the Surface of Graphene
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石墨烯表面金原子层的制备与观察
DOI：
10.1143/apex.5.065103
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Y. Sasaki
中科院分区：
文献类型：
--
作者：
Shigeaki Obata;Hitoshi Goto;横山 泰他;平尾岳大・池田俊明・灰野岳晴;Y. Sasaki
使用通过化学气相沉积生长的石墨烯样品制备独立的清洁石墨烯，并直接转移到SiN网格上，然后进行氢等离子体处理。高分辨率透射电子显微镜显示，沉积在石墨烯上的Au原子具有独特的层结构，其中Au原子呈正方形排列。我们发现，Au纳米结构在温和的电子束照射条件下蒸发，这是特定于独特的薄层结构。
Freestanding clean graphene is prepared using graphene samples grown by chemical vapor deposition and direct transfer onto a SiN grid followed by hydrogen plasma treatment. High-resolution transmission electron microscopy has shown that the Au atoms deposited on the graphene possess a unique layer structure with a square arrangement of Au atoms. We found that the Au nanostructure vaporizes under mild electron beam irradiation conditions, which is specific to the unique thin layer structure.