Humidity effects on scanning polarization force microscopy imaging

doi:10.1016/j.apsusc.2017.03.291

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	Humidity effects on scanning polarization force microscopy imaging
	Shen, Yue; Zhou, Yuan; Sun, Yanxia; Zhang, Lijuan; Wang, Ying; Hu, Jun; Zhang, Yi
第一作者	Shen, Yue
	2017-08-01
发表期刊	APPLIED SURFACE SCIENCE
ISSN	0169-4332
卷号	412 页码:497-504
关键词	Scanning Polarization Force Microscopy Humidity Graphene Oxide Reduced Graphene Oxide Mica
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.
DOI	10.1016/j.apsusc.2017.03.291
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6217
专题	青海盐湖研究所知识仓储盐湖资源与化学实验室
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.

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