Research output: Contribution to Journal/Magazine › Letter › peer-review
Electromechanical sensing of substrate charge hidden under atomic 2D crystals. / Kay, Nicholas; Robinson, Benjamin; Falko, Vladimir et al.
In: Nano Letters, Vol. 14, No. 6, 23.05.2014, p. 3400-3404.Research output: Contribution to Journal/Magazine › Letter › peer-review
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TY - JOUR
T1 - Electromechanical sensing of substrate charge hidden under atomic 2D crystals
AU - Kay, Nicholas
AU - Robinson, Benjamin
AU - Falko, Vladimir
AU - Novoselov, Kostya
AU - Kolosov, Oleg
PY - 2014/5/23
Y1 - 2014/5/23
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 - Graphene
KW - NEMS
KW - EFM
KW - contact mode
KW - surface charges
U2 - 10.1021/nl500922h
DO - 10.1021/nl500922h
M3 - Letter
VL - 14
SP - 3400
EP - 3404
JO - Nano Letters
JF - Nano Letters
SN - 1530-6984
IS - 6
ER -