Noise Analysis of Monolayer Graphene Nanopores

doi:10.3390/ijms19092639

	Noise Analysis of Monolayer Graphene Nanopores
	Zhang, Zi-Yin 1,2; Deng, Yun-Sheng 2,3; Tian, Hai-Bing 2; Yan, Han 2; Cui, Hong-Liang1,2 ; Wang, De-Qiang2
刊名	INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
	2018-09-01
卷号	19 期号:9 页码:11
关键词	monolayer graphene solid-state nanopore suspended area noise power spectral density
ISSN号	1422-0067
DOI	10.3390/ijms19092639
通讯作者	Cui, Hong-Liang(hcui@jlu.edu.cn) ; Wang, De-Qiang(dqwang@cigit.ac.cn)
英文摘要	Graphene-based nanopore devices have shown tantalizing potential in single molecule detection for their monoatomic membrane thickness which is roughly equal to the gap between nucleobases. However, high noise level hampers applications of graphene nanopore sensors, especially at low frequencies. In this article, we report on a study of the contribution of suspended graphene area to noise level in full frequency band. Monolayer graphene films are transferred onto SiNx substrates preset with holes in varied diameters and formed self-supported films. After that, the films are perforated with smaller, nanoscale holes. Experimental studies indicate a dependency of low-frequency 1/f noise on the underlying SiNx geometry. The contribution of the suspended graphene area to capacitance which affects the noise level in the high frequency range reveals that the graphene free-standing film area influences noise level over a wide frequency region. In addition, the low-frequency noise demonstrates a weak dependency on salt concentration, in deviation from Hooge's relation. These findings and attendant analysis provide a systematic understanding of the noise characteristics and can serve as a guide to designing free-standing monolayer graphene nanopore devices.
资助项目	Chinese Academy of Sciences[Y52A100K10] ; National Nature Science Foundation of China[61471336] ; Joint-Scholar ofWest-Light Foundation of the Chinese Academy of Sciences
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
语种	英语
出版者	MDPI
WOS记录号	WOS:000449988100175
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/6981]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Cui, Hong-Liang; Wang, De-Qiang
作者单位	1.Jilin Univ, Coll Instrumentat & Elect Engn, Changchun 130061, Jilin, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 3.Southern Univ Sci & Technol, Mat Characterizat & Preparat Ctr, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zi-Yin,Deng, Yun-Sheng,Tian, Hai-Bing,et al. Noise Analysis of Monolayer Graphene Nanopores[J]. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,2018,19(9):11.
APA	Zhang, Zi-Yin,Deng, Yun-Sheng,Tian, Hai-Bing,Yan, Han,Cui, Hong-Liang,&Wang, De-Qiang.(2018).Noise Analysis of Monolayer Graphene Nanopores.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,19(9),11.
MLA	Zhang, Zi-Yin,et al."Noise Analysis of Monolayer Graphene Nanopores".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 19.9(2018):11.