Measurements of the adhesion energy of graphene to metallic substrates
Measurements of the adhesion energy of graphene to metallic substrates
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DOI：
10.1016/j.carbon.2013.02.063
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发表时间：
2013-08-01
期刊：
影响因子：
10.9
通讯作者：
Choi, Wonbong
中科院分区：
文献类型：
--
作者：
Das, Santanu;Lahiri, Debrupa;Choi, Wonbong
我们报告了化学气相沉积（CVD）石墨烯在Cu和Ni上的粘附能的纳米级定量研究。石墨烯在Cu和Ni衬底上的粘附能分别测量为12.8和72.7 Jm（-2）。密度泛函理论表明，石墨烯/Ni界面比部分离子的石墨烯/Cu表现出更多的共价键合，因此石墨烯/Ni具有更高的粘附能。我们相信，这种纳米尺度的粘附能测量方法可以进一步扩展到测量其他二维材料的粘附能。(C)2013爱思唯尔有限公司版权所有。
We report a nano-scale quantification study of the adhesion energy of chemically vapor deposited (CVD) graphene on Cu and Ni. The adhesion energy of graphene on Cu and Ni substrates was measured to be 12.8 and 72.7 Jm(-2), respectively. Density functional theory shows that the graphene/Ni interface exhibits more covalent bonding than graphene/Cu which is partially ionic, hence the reason for the higher adhesion energy for graphene/Ni. We believe that this nano-scale adhesion energy measurement method could be further extended for measuring the adhesion energy of other 2D materials. (C) 2013 Elsevier Ltd. All rights reserved.