Observations on the distribution of sulfur nanoparticles on suspended and supported graphene layers
编号:237 稿件编号:275 访问权限:仅限参会人 更新:2022-09-27 17:05:35 浏览:495次 口头报告

报告开始:2023年04月23日 15:10 (Asia/Shanghai)

报告时间:15min

所在会议:[N] 摩擦学表面工程论坛二 » [N2] 下午场

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摘要
In this paper, we report the distinct difference in the distributions of sulfur nanoparticles(NPs) on suspended graphene compared to supported one. With vapor deposition of sulfur NPs onto graphene with patterned substrate, we find that the density of NPs on supported regions is 3 to 8 times larger than that on suspended ones. Different correlations between density and number of graphene layers are observed, being positive for suspended and negative for supported regions. The density also increases with the area of the suspended regions. The mechanism underlying these phenomena is attributed to the ripple induced enhanced diffusion of sulfur on suspended graphene.

 
关键字
Nanoparticle, Suspended Graphene, Diffusion, Vapor Deposition
报告人
何雨勍
清华大学机械系

稿件作者
何雨勍 清华大学机械系
马明 清华大学机械系
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