Humidity effects on scanning polarization force microscopy imaging

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	Humidity effects on scanning polarization force microscopy imaging
	Shen, Yue 1,2; Zhou, Yuan 1; Sun, Yanxia 1,3; Zhang, Lijuan 1,3; Wang, Ying 2; Hu, Jun 2; Zhang, Yi 2
刊名	APPLIED SURFACE SCIENCE
	2017-08-01
卷号	412 页码:497-504
关键词	Scanning Polarization Force Microscopy Humidity Graphene Oxide Reduced Graphene Oxide Mica
文献子类	Article
英文摘要	Scanning polarization force microscopy (SPFM) is a useful surface characterization technique to visually characterize and distinguish nanomaterial with different local dielectric properties at nanometer scale. In this paper, taking the individual one-atom-thick graphene oxide (GO) and reduced graphene oxide (rGO) sheets on mica as examples, we described the influences of environmental humidity on SPFM imaging. We found that the apparent heights (AHs) or contrast of SPFM imaging was influenced significantly by relative humidity (RH) at a response time of a few seconds. And this influence rooted in the sensitive dielectric constant of mica surface to the RH change. While dielectric properties of GO and rGO sheets were almost immune to the humidity change. In addition, we gave the method to determine the critical humidity at which the contrast conversion happened under different conditions. And this is important to the contrast control and repeatable imaging of SPFM through RH adjusting. These findings suggest a strategy of controllable and repeatable imaging the local dielectric properties of nanomaterials with SPFM, which is critically important for further distinguishment, manipulation, electronic applications, etc. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词	REDUCED GRAPHENE OXIDE ; WETTING PROPERTIES ; CARBON NANOTUBES ; GRAPHITE OXIDE ; MICA ; WATER ; REDUCTION ; CONDENSATION ; GLYCEROL ; SHEETS
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
WOS记录号	WOS:000401392900056
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/6217]
专题	青海盐湖研究所_青海盐湖研究所知识仓储青海盐湖研究所_盐湖资源与化学实验室
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Key Lab Salt Lake Resources Chem Qinghai Prov, Xining 810008, Qinghai, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Shen, Yue,Zhou, Yuan,Sun, Yanxia,et al. Humidity effects on scanning polarization force microscopy imaging[J]. APPLIED SURFACE SCIENCE,2017,412:497-504.
APA	Shen, Yue.,Zhou, Yuan.,Sun, Yanxia.,Zhang, Lijuan.,Wang, Ying.,...&Zhang, Yi.(2017).Humidity effects on scanning polarization force microscopy imaging.APPLIED SURFACE SCIENCE,412,497-504.
MLA	Shen, Yue,et al."Humidity effects on scanning polarization force microscopy imaging".APPLIED SURFACE SCIENCE 412(2017):497-504.