Modulation the electronic property of 2D monolayer MoS2                         by amino acid

Peng Zhang; Zegao Wang; Lei Liu; Lasse Hyldgaard Klausen; Yin Wang; Jianli Mi; Mingdong Dong

doi:10.1016/j.apmt.2018.12.003

Modulation the electronic property of 2D monolayer MoS₂ by amino acid

Peng Zhang, Zegao Wang, Lei Liu^*, Lasse Hyldgaard Klausen, Yin Wang, Jianli Mi, Mingdong Dong

^*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

67 Citations (Scopus)

Abstract

2D molybdenum disulfide (MoS ₂ ) has a strong potential for the detection of biomolecules, however, the specific interactions between individual amino acids and MoS ₂ surface are still unclear. Herein, the adsorption properties and electronic structures of amino acid/MoS ₂ systems were investigated systematically for the 20 standard amino acids based on density functional theory. The adsorption strength of amino acids on MoS ₂ monolayer decreases in the following order: TRP > ARG > PHE > TYR > LYS > HIS > PRO > ASN ≈ MET > LEU > ILE > VAL > GLU > GLN > THR > ASP > CYS > SER > ALA > GLY. The band gap of amino acid/MoS ₂ system is determined by the energy level of HOMO orbit of the adsorbed amino acid, in which the higher energy level of HOMO orbit will result in a smaller band gap. As proof of concept, optical and electrical detection of the MoS ₂ based transistors with and without amino acid molecules (TRP and CYS) were studied. Adsorption of amino acids on a MoS ₂ surface allows their chemical information to be transformed into distinct analytically optical and electronic signals, which opens up new possibilities for fabricating novel MoS ₂ based highly selective biosensors.

Original language	English
Journal	Applied Materials Today
Volume	14
Issue	March
Pages (from-to)	151-158
Number of pages	8
DOIs	https://doi.org/10.1016/j.apmt.2018.12.003
Publication status	Published - 2019

Keywords

MoS2
Amino acid
Density functional theory
Field effect transistors
FIELD-EFFECT TRANSISTOR
TRANSITION-METAL DICHALCOGENIDES
GRAPHENE
HYSTERESIS
FUNCTIONALIZATION
SENSITIVITY
ADSORPTION
TRANSPORT

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@article{b93ca392fec3441c8c2a5f1a4a8f80c4,

title = "Modulation the electronic property of 2D monolayer MoS2 by amino acid",

abstract = " 2D molybdenum disulfide (MoS 2 ) has a strong potential for the detection of biomolecules, however, the specific interactions between individual amino acids and MoS 2 surface are still unclear. Herein, the adsorption properties and electronic structures of amino acid/MoS 2 systems were investigated systematically for the 20 standard amino acids based on density functional theory. The adsorption strength of amino acids on MoS 2 monolayer decreases in the following order: TRP > ARG > PHE > TYR > LYS > HIS > PRO > ASN ≈ MET > LEU > ILE > VAL > GLU > GLN > THR > ASP > CYS > SER > ALA > GLY. The band gap of amino acid/MoS 2 system is determined by the energy level of HOMO orbit of the adsorbed amino acid, in which the higher energy level of HOMO orbit will result in a smaller band gap. As proof of concept, optical and electrical detection of the MoS 2 based transistors with and without amino acid molecules (TRP and CYS) were studied. Adsorption of amino acids on a MoS 2 surface allows their chemical information to be transformed into distinct analytically optical and electronic signals, which opens up new possibilities for fabricating novel MoS 2 based highly selective biosensors. ",

keywords = "MoS2, Amino acid, Density functional theory, Field effect transistors, FIELD-EFFECT TRANSISTOR, TRANSITION-METAL DICHALCOGENIDES, GRAPHENE, HYSTERESIS, FUNCTIONALIZATION, SENSITIVITY, ADSORPTION, TRANSPORT",

author = "Peng Zhang and Zegao Wang and Lei Liu and Klausen, {Lasse Hyldgaard} and Yin Wang and Jianli Mi and Mingdong Dong",

year = "2019",

doi = "10.1016/j.apmt.2018.12.003",

language = "English",

volume = "14",

pages = "151--158",

journal = "Applied Materials Today",

issn = "2352-9415",

publisher = "Elsevier Ltd",

number = "March",

}

TY - JOUR

T1 - Modulation the electronic property of 2D monolayer MoS2 by amino acid

AU - Zhang, Peng

AU - Wang, Zegao

AU - Liu, Lei

AU - Klausen, Lasse Hyldgaard

AU - Wang, Yin

AU - Mi, Jianli

AU - Dong, Mingdong

PY - 2019

Y1 - 2019

N2 - 2D molybdenum disulfide (MoS 2 ) has a strong potential for the detection of biomolecules, however, the specific interactions between individual amino acids and MoS 2 surface are still unclear. Herein, the adsorption properties and electronic structures of amino acid/MoS 2 systems were investigated systematically for the 20 standard amino acids based on density functional theory. The adsorption strength of amino acids on MoS 2 monolayer decreases in the following order: TRP > ARG > PHE > TYR > LYS > HIS > PRO > ASN ≈ MET > LEU > ILE > VAL > GLU > GLN > THR > ASP > CYS > SER > ALA > GLY. The band gap of amino acid/MoS 2 system is determined by the energy level of HOMO orbit of the adsorbed amino acid, in which the higher energy level of HOMO orbit will result in a smaller band gap. As proof of concept, optical and electrical detection of the MoS 2 based transistors with and without amino acid molecules (TRP and CYS) were studied. Adsorption of amino acids on a MoS 2 surface allows their chemical information to be transformed into distinct analytically optical and electronic signals, which opens up new possibilities for fabricating novel MoS 2 based highly selective biosensors.

AB - 2D molybdenum disulfide (MoS 2 ) has a strong potential for the detection of biomolecules, however, the specific interactions between individual amino acids and MoS 2 surface are still unclear. Herein, the adsorption properties and electronic structures of amino acid/MoS 2 systems were investigated systematically for the 20 standard amino acids based on density functional theory. The adsorption strength of amino acids on MoS 2 monolayer decreases in the following order: TRP > ARG > PHE > TYR > LYS > HIS > PRO > ASN ≈ MET > LEU > ILE > VAL > GLU > GLN > THR > ASP > CYS > SER > ALA > GLY. The band gap of amino acid/MoS 2 system is determined by the energy level of HOMO orbit of the adsorbed amino acid, in which the higher energy level of HOMO orbit will result in a smaller band gap. As proof of concept, optical and electrical detection of the MoS 2 based transistors with and without amino acid molecules (TRP and CYS) were studied. Adsorption of amino acids on a MoS 2 surface allows their chemical information to be transformed into distinct analytically optical and electronic signals, which opens up new possibilities for fabricating novel MoS 2 based highly selective biosensors.

KW - MoS2

KW - Amino acid

KW - Density functional theory

KW - Field effect transistors

KW - FIELD-EFFECT TRANSISTOR

KW - TRANSITION-METAL DICHALCOGENIDES

KW - GRAPHENE

KW - HYSTERESIS

KW - FUNCTIONALIZATION

KW - SENSITIVITY

KW - ADSORPTION

KW - TRANSPORT

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DO - 10.1016/j.apmt.2018.12.003

M3 - Journal article

AN - SCOPUS:85058445930

SN - 2352-9415

VL - 14

SP - 151

EP - 158

JO - Applied Materials Today

JF - Applied Materials Today

IS - March

ER -

Modulation the electronic property of 2D monolayer MoS₂ by amino acid

Abstract

Keywords

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