Journal article
Probing the relationship of cations-graphene interaction strength with self-organization behaviors of the anions at the interface between graphene and ionic liquids
Applied surface science, Vol.479, pp.576-581
06/15/2019
DOI: 10.1016/j.apsusc.2019.02.070
Abstract
The influence of molecular cations on the dynamic self-organization of anion at the interface between graphene and ionic liquid (IL) is investigated by selecting same anion ILs (N,N-diethyl-N-(2-methoxyethyl)-N-methylammonium bis(trifluoromethylsulfonyl)imide (DEME-TFSI) and 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMP-TFSI)) as the top gate of double-gate graphene filed effect transistors (DG-GFETs). The selected ILs have similar viscosity and conductivity but exhibit distinctly different effects on device performance. From electric transport properties of the DG-GFETs and infrared spectroscopy, it is found that stronger BMP-graphene interactions facilitate faster self-organization of the TFSI anions on graphene. The results introduce an important role of the interfacial cation-graphene interactions that contribute to molecular self-organization, and clearly show the significant impact interfacial effects offer for tuning macroscopic device performance. [Display omitted] •The interfacial electrochemical effect between ILs and graphene in BMP-TFSI DG-GFET is stronger than that in DEME-TFSI DG-GFET•The self-organization process of TFSI anion is faster in the BMP-TFSI/graphene interface than in DEME-TFSI/graphene interface after both light illumination and rotation•The stronger interfacial electrochemical effect between ILs and graphene in BMP-TFSI DG-GFET is duo to the stronger interaction between the cation and graphene
Details
- Title: Subtitle
- Probing the relationship of cations-graphene interaction strength with self-organization behaviors of the anions at the interface between graphene and ionic liquids
- Creators
- Guangliang Hu - State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, ChinaRadhika S Anaredy - Department of Chemistry, University of Iowa, Iowa City, IA 52242, USAMohammed Alamri - Department of Physics and Astronomy, University of Kansas, Lawrence, KS 66045, USAQingfeng Liu - Department of Physics and Astronomy, University of Kansas, Lawrence, KS 66045, USAGaind P Pandey - Department of Chemistry, Kansas State University, Manhattan, KS 66506, USAChunrui Ma - State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, ChinaMing Liu - School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, ChinaScott K Shaw - Department of Chemistry, University of Iowa, Iowa City, IA 52242, USAJun Li - Department of Chemistry, Kansas State University, Manhattan, KS 66506, USAJudy Z Wu - Department of Physics and Astronomy, University of Kansas, Lawrence, KS 66045, USA
- Resource Type
- Journal article
- Publication Details
- Applied surface science, Vol.479, pp.576-581
- Publisher
- Elsevier B.V
- DOI
- 10.1016/j.apsusc.2019.02.070
- ISSN
- 0169-4332
- eISSN
- 1873-5584
- Grant note
- DOI: 10.13039/501100012226, name: Fundamental Research Funds for the Central Universities; DOI: 10.13039/100000104, name: NASA, award: NNX13AD42A; DOI: 10.13039/100000183, name: ARO, award: W911NF-16-1-0029; name: NSF, award: NSF-DMR-1337737, NSF-DMR1508494; DOI: 10.13039/501100001809, name: Natural Science Foundation of China, award: 51390472, 51702255; name: National “973”, award: 2015CB654903; DOI: 10.13039/501100002858, name: China Postdoctoral Science Foundation, award: 2015M582649, NSFC-NGC 61631166004; name: NSF, award: 1651381; DOI: 10.13039/100006770, name: ACS Petroleum Research Fund, award: 55279-DNI5; DOI: 10.13039/100001309, name: Research Corporation for Science Advancement
- Language
- English
- Date published
- 06/15/2019
- Academic Unit
- Chemistry
- Record Identifier
- 9983986086702771
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