Electromechanical sensing of substrate charge hidden under atomic 2D crystals

Nicholas D. Kay; Benjamin J. Robinson; Vladimir I. Fal'Ko; Konstantin S. Novoselov; Oleg V. Kolosov

doi:10.1021/nl500922h

Electromechanical sensing of substrate charge hidden under atomic 2D crystals

Nicholas D. Kay
, Benjamin J. Robinson
, Vladimir I. Fal'Ko
, Konstantin S. Novoselov
, Oleg V. Kolosov^*

^*Corresponding author for this work

Lancaster University

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

Abstract

The functionality of graphene and other two-dimensional materials in electronic devices is highly influenced by the film-substrate charge transfer affecting local carrier density. We demonstrate that charges buried under the few layer graphene on/in the insulating substrate can be detected using electromechanical actuation of the conductive atomically thin layers, allowing measurements of areal density of film-substrate transferred charges under few layer graphene and MoS₂ suspended films.

Original language	English
Pages (from-to)	3400-3404
Number of pages	5
Journal	Nano Letters
Volume	14
Issue number	6
DOIs	https://doi.org/10.1021/nl500922h
Publication status	Published - 11 Jun 2014

Keywords

contact mode
EFM
Graphene
NEMS
surface charges

Research Beacons, Institutes and Platforms

National Graphene Institute

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10.1021/nl500922h

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title = "Electromechanical sensing of substrate charge hidden under atomic 2D crystals",

abstract = "The functionality of graphene and other two-dimensional materials in electronic devices is highly influenced by the film-substrate charge transfer affecting local carrier density. We demonstrate that charges buried under the few layer graphene on/in the insulating substrate can be detected using electromechanical actuation of the conductive atomically thin layers, allowing measurements of areal density of film-substrate transferred charges under few layer graphene and MoS2 suspended films.",

keywords = "contact mode, EFM, Graphene, NEMS, surface charges",

author = "Kay, \{Nicholas D.\} and Robinson, \{Benjamin J.\} and Fal'Ko, \{Vladimir I.\} and Novoselov, \{Konstantin S.\} and Kolosov, \{Oleg V.\}",

year = "2014",

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doi = "10.1021/nl500922h",

language = "English",

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journal = "Nano Letters",

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AU - Kay, Nicholas D.

AU - Robinson, Benjamin J.

AU - Fal'Ko, Vladimir I.

AU - Novoselov, Konstantin S.

AU - Kolosov, Oleg V.

PY - 2014/6/11

Y1 - 2014/6/11

N2 - The functionality of graphene and other two-dimensional materials in electronic devices is highly influenced by the film-substrate charge transfer affecting local carrier density. We demonstrate that charges buried under the few layer graphene on/in the insulating substrate can be detected using electromechanical actuation of the conductive atomically thin layers, allowing measurements of areal density of film-substrate transferred charges under few layer graphene and MoS2 suspended films.

AB - The functionality of graphene and other two-dimensional materials in electronic devices is highly influenced by the film-substrate charge transfer affecting local carrier density. We demonstrate that charges buried under the few layer graphene on/in the insulating substrate can be detected using electromechanical actuation of the conductive atomically thin layers, allowing measurements of areal density of film-substrate transferred charges under few layer graphene and MoS2 suspended films.

KW - contact mode

KW - EFM

KW - Graphene

KW - NEMS

KW - surface charges

UR - https://www.scopus.com/pages/publications/84902276810

U2 - 10.1021/nl500922h

DO - 10.1021/nl500922h

M3 - Article

AN - SCOPUS:84902276810

SN - 1530-6984

VL - 14

SP - 3400

EP - 3404

JO - Nano Letters

JF - Nano Letters

IS - 6

ER -

Electromechanical sensing of substrate charge hidden under atomic 2D crystals

Abstract

Keywords

Research Beacons, Institutes and Platforms

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