Surface stress of graphene layers supported on soft substrate

doi:10.1038/srep25653

CORC > 北京大学 > 工学院

	Surface stress of graphene layers supported on soft substrate
	Du, Feng ; Huang, Jianyong ; Duan, Huiling ; Xiong, Chunyang ; Wang, Jianxiang
刊名	SCIENTIFIC REPORTS
	2016
关键词	LARGE-AREA GRAPHENE LIQUID INCLUSIONS CONTACT STRESSES INTERFACE STRESS SOLAR-CELLS SOLIDS FILMS STRENGTH TENSION WETTABILITY
DOI	10.1038/srep25653
英文摘要	We obtain the surface stress of a single layer and multilayers of graphene supported on silicone substrates by measuring the deformation of the graphene-covered substrates induced by the surface tension of liquid droplets together with the Neumann's triangle concept. We find that the surface stress of the graphene-covered substrate is significant larger than that of the bare substrate, and it increases with increasing graphene layers, and finally reaches a constant value of about 120 mN/m on three and more layers of graphene. This work demonstrates that the apparent surface stress of graphene-substrate systems can be tuned by the substrate and the graphene layers. The surface stress and the tuning effect of the substrate on it may have applications in design and characterization of graphene-based ultra-sensitive sensors and other devices. Moreover, the method may also be used to measure the surface stress of other ultrathin films supported on soft substrates.; National Natural Science Foundation of China [11225208, 11521202]; National Basic Research Program of China [2013CB933702]; SCI(E); PubMed; ARTICLE; cyxiong@pku.edu.cn; jxwang@pku.edu.cn; 25653; 6
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/433782]
专题	工学院
推荐引用方式 GB/T 7714	Du, Feng,Huang, Jianyong,Duan, Huiling,et al. Surface stress of graphene layers supported on soft substrate[J]. SCIENTIFIC REPORTS,2016.
APA	Du, Feng,Huang, Jianyong,Duan, Huiling,Xiong, Chunyang,&Wang, Jianxiang.(2016).Surface stress of graphene layers supported on soft substrate.SCIENTIFIC REPORTS.
MLA	Du, Feng,et al."Surface stress of graphene layers supported on soft substrate".SCIENTIFIC REPORTS (2016).