A general and simple method for evaluating the electrical transport performance of graphene by the van der Pauw-Hall measurement

doi:10.1016/j.scib.2018.10.007

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	A general and simple method for evaluating the electrical transport performance of graphene by the van der Pauw-Hall measurement
	Qing, Fangzhu 4,6; Shu, Yang 6; Qing, Linsen 5; Niu, Yuting 6; Guo, He 6; Zhang, Shuyi 6; Liu, Chunlin 6; Shen, Changqing 6; Zhang, Wanli 6; Mao, Samuel S.2,3
刊名	SCIENCE BULLETIN
	2018
卷号	63 期号:2018 页码:1521-1526
关键词	Graphene Van der Pauw Hall Chemical vapor deposition (CVD)
ISSN号	2095-9273
DOI	10.1016/j.scib.2018.10.007
产权排序	2
文献子类	Article
英文摘要	Expected for many promising applications in the field of electronics and optoelectronics, a reliable method for the characterization of graphene electrical transport properties is desired to predict its device performance or provide feedback for its synthesis. However, the commonly used methods of extracting carrier mobility from graphene field effect transistor or Hall-bar is time consuming, expensive, and significantly affected by the device fabrication process other than graphene itself. Here we reported a general and simple method to evaluate the electrical transport performance of graphene by the van der Pauw-Hall measurement. By annealing graphene in vacuum to remove the adsorbed dopants and then exposing it in ambient surroundings, carrier mobility as a function of density can be measured with the increase of carrier density due to the dopant re-adsorption from the surroundings. Further, the relationship between the carrier mobility and density can be simply fitted with a power equation to the first level approximation, with which any pair of measured carrier mobility and density can be normalized to an arbitrary carrier density for comparison. We experimentally demonstrated the reliability of the method, which is much simpler than making devices and may promote the standard making for graphene characterization. (C) 2018 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
学科主题	Multidisciplinary
URL标识	查看原文
WOS关键词	CARRIER MOBILITY ; HIGH-QUALITY ; TRANSISTORS ; FILMS
WOS研究方向	Science & Technology
语种	英语
CSCD记录号	CSCD:6409054
出版者	SCIENCE PRESS
WOS记录号	WOS:000451638000011
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/30571]
专题	国家天然药物工程技术研究中心_天然产物研究
作者单位	1.Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA 2.Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA; 3.Inst New Energy, Shenzhen 518031, Peoples R China; 4.Univ Elect Sci & Technol China, Natl Engn Res Ctr Electromagnet Radiat Control Ma, Chengdu 610054, Sichuan, Peoples R China; 5.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Sichuan, Peoples R China; 6.State Key Laboratory of Electronic Thin Films and Integrated Devices & School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China;
推荐引用方式 GB/T 7714	Qing, Fangzhu,Shu, Yang,Qing, Linsen,et al. A general and simple method for evaluating the electrical transport performance of graphene by the van der Pauw-Hall measurement[J]. SCIENCE BULLETIN,2018,63(2018):1521-1526.
APA	Qing, Fangzhu.,Shu, Yang.,Qing, Linsen.,Niu, Yuting.,Guo, He.,...&Li, Xuesong.(2018).A general and simple method for evaluating the electrical transport performance of graphene by the van der Pauw-Hall measurement.SCIENCE BULLETIN,63(2018),1521-1526.
MLA	Qing, Fangzhu,et al."A general and simple method for evaluating the electrical transport performance of graphene by the van der Pauw-Hall measurement".SCIENCE BULLETIN 63.2018(2018):1521-1526.