• 文献标题:   On the wettability transparency of graphene-coated silicon surfaces
  • 文献类型:   Article
  • 作  者:   RAMOSALVARADO B, KUMAR S, PETERSON GP
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF CHEMICAL PHYSICS
  • ISSN:   0021-9606 EI 1089-7690
  • 通讯作者地址:   Georgia Inst Technol
  • 被引频次:   24
  • DOI:   10.1063/1.4938499
  • 出版年:   2016

▎ 摘  要

In order to better understand the behavior and governing characteristics of the wetting transparency phenomenon observed in graphene-coated surfaces, molecular dynamics simulations were coupled with a theoretical model. Graphene-coated silicon was selected for this analysis, due to potential applications of hybrid silicon-graphene materials as detectors in aqueous environments. The results indicate good agreement between the theory and simulations at the macroscopic conditions required to observe wetting transparency. A microscopic analysis was also conducted in order to identify the parameters, such as the interaction potential energy landscape and the interfacial liquid structure that govern the wetting behavior of graphene-coated surfaces. The interfacial liquid structure was found to be different between uncoated Si(100) and the graphene-coated version and very similar between uncoated Si(111) and the graphene-coated version. However, the concentration of liquid particles for both silicon surfaces was found to be very similar under transparent wetting conditions. (C) 2016 AIP Publishing LLC.