Probing the relationship of cations-graphene interaction strength with self-organization behaviors of the anions at the interface between graphene and ionic liquids

Guangliang Hu; Radhika S. Anaredy; Mohammed Alamri; Qingfeng Liu; Gaind P. Pandey; Chunrui Ma; Ming Liu; Scott K. Shaw; Jun Li; Judy Z. Wu

doi:10.1016/j.apsusc.2019.02.070

Probing the relationship of cations-graphene interaction strength with self-organization behaviors of the anions at the interface between graphene and ionic liquids

Guangliang Hu, Radhika S. Anaredy, Mohammed Alamri, Qingfeng Liu, Gaind P. Pandey, Chunrui Ma, Ming Liu, Scott K. Shaw, Jun Li, Judy Z. Wu

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

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.

Original language	English
Pages (from-to)	576-581
Number of pages	6
Journal	Applied Surface Science
Volume	479
DOIs	https://doi.org/10.1016/j.apsusc.2019.02.070
State	Published - 15 Jun 2019
Externally published	Yes

Keywords

Electrochemical effect
Graphene field effect transistor
Interfacial layer
Ionic liquid

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10.1016/j.apsusc.2019.02.070

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@article{9024f3f2c7e342daa8210f4130824e15,

title = "Probing the relationship of cations-graphene interaction strength with self-organization behaviors of the anions at the interface between graphene and ionic liquids",

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.",

keywords = "Electrochemical effect, Graphene field effect transistor, Interfacial layer, Ionic liquid",

author = "Guangliang Hu and Anaredy, {Radhika S.} and Mohammed Alamri and Qingfeng Liu and Pandey, {Gaind P.} and Chunrui Ma and Ming Liu and Shaw, {Scott K.} and Jun Li and Wu, {Judy Z.}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = jun,

day = "15",

doi = "10.1016/j.apsusc.2019.02.070",

language = "英语",

volume = "479",

pages = "576--581",

journal = "Applied Surface Science",

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T1 - Probing the relationship of cations-graphene interaction strength with self-organization behaviors of the anions at the interface between graphene and ionic liquids

AU - Hu, Guangliang

AU - Anaredy, Radhika S.

AU - Alamri, Mohammed

AU - Liu, Qingfeng

AU - Pandey, Gaind P.

AU - Ma, Chunrui

AU - Liu, Ming

AU - Shaw, Scott K.

AU - Li, Jun

AU - Wu, Judy Z.

PY - 2019/6/15

Y1 - 2019/6/15

N2 - 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.

AB - 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.

KW - Electrochemical effect

KW - Graphene field effect transistor

KW - Interfacial layer

KW - Ionic liquid

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U2 - 10.1016/j.apsusc.2019.02.070

DO - 10.1016/j.apsusc.2019.02.070

M3 - 文章

AN - SCOPUS:85061767410

SN - 0169-4332

VL - 479

SP - 576

EP - 581

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Probing the relationship of cations-graphene interaction strength with self-organization behaviors of the anions at the interface between graphene and ionic liquids

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Keywords

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