Inter-layer coupling induced valence band edge shift in mono- to few-layer MoS2
Abstract
In this study, recent progress in the synthesis of monolayer MoS2, a two-dimensional direct band-gap semiconductor, is paving new pathways toward atomically thin electronics. Despite the large amount of literature, fundamental gaps remain in understanding electronic properties at the nanoscale. Here,we report a study of highly crystalline islands of MoS2 grown via a refined chemical vapor deposition synthesis technique. Using high resolution scanning tunneling microscopy and spectroscopy (STM/STS), photoemission electron microscopy/spectroscopy (PEEM) and μ-ARPES we investigate the electronic properties of MoS2 as a function of the number of layers at the nanoscale and show in-depth how the band gap is affected by a shift of the valence band edge as a function of the layer number. Green’s function based electronic structure calculations were carried out in order to shed light on the mechanism underlying the observed bandgap reduction with increasing thickness, and the role of the interfacial Sulphur atoms is clarified. Our study, which gives new insight into the variation of electronic properties of MoS2 films with thickness bears directly on junction properties of MoS2, and thus impacts electronics application of MoS2.
- Authors:
-
- Temple Univ., Philadelphia, PA (United States)
- Tampere Univ. of Technology, Tampere (Finland)
- Northeastern Univ., Boston, MA (United States)
- National Tsing Hua Univ., Hsinchu (Taiwan)
- National Tsing Hua Univ., Hsinchu (Taiwan); Academic Sinica, Taipei (Taiwan)
- National Univ. of Singapore (Singapore)
- Helmholtz-Zentrum Berlin fur Materialien und Energie, Berlin (Germany)
- Temple Univ., Philadelphia, PA (United States); Northeastern Univ., Boston, MA (United States)
- Publication Date:
- Research Org.:
- Temple Univ., Philadelphia, PA (United States); Northeastern Univ., Boston, MA (United States); Energy Frontier Research Centers (EFRC) (United States). Center for the Computational Design of Functional Layered Materials (CCDM)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1347388
- Grant/Contract Number:
- SC0012575; FG02-07ER46352
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scientific Reports
- Additional Journal Information:
- Journal Volume: 7; Journal ID: ISSN 2045-2322
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; electronic properties and materials; two-dimensional materials
Citation Formats
Trainer, Daniel J., Putilov, Aleksei V., Di Giorgio, Cinzia, Saari, Timo, Wang, Baokai, Wolak, Mattheus, Chandrasena, Ravini U., Lane, Christopher, Chang, Tay -Rong, Jeng, Horng -Tay, Lin, Hsin, Kronast, Florian, Gray, Alexander X., Xi, Xiaoxing X., Nieminen, Jouko, Bansil, Arun, and Iavarone, Maria. Inter-layer coupling induced valence band edge shift in mono- to few-layer MoS2. United States: N. p., 2017.
Web. doi:10.1038/srep40559.
Trainer, Daniel J., Putilov, Aleksei V., Di Giorgio, Cinzia, Saari, Timo, Wang, Baokai, Wolak, Mattheus, Chandrasena, Ravini U., Lane, Christopher, Chang, Tay -Rong, Jeng, Horng -Tay, Lin, Hsin, Kronast, Florian, Gray, Alexander X., Xi, Xiaoxing X., Nieminen, Jouko, Bansil, Arun, & Iavarone, Maria. Inter-layer coupling induced valence band edge shift in mono- to few-layer MoS2. United States. https://doi.org/10.1038/srep40559
Trainer, Daniel J., Putilov, Aleksei V., Di Giorgio, Cinzia, Saari, Timo, Wang, Baokai, Wolak, Mattheus, Chandrasena, Ravini U., Lane, Christopher, Chang, Tay -Rong, Jeng, Horng -Tay, Lin, Hsin, Kronast, Florian, Gray, Alexander X., Xi, Xiaoxing X., Nieminen, Jouko, Bansil, Arun, and Iavarone, Maria. Fri .
"Inter-layer coupling induced valence band edge shift in mono- to few-layer MoS2". United States. https://doi.org/10.1038/srep40559. https://www.osti.gov/servlets/purl/1347388.
@article{osti_1347388,
title = {Inter-layer coupling induced valence band edge shift in mono- to few-layer MoS2},
author = {Trainer, Daniel J. and Putilov, Aleksei V. and Di Giorgio, Cinzia and Saari, Timo and Wang, Baokai and Wolak, Mattheus and Chandrasena, Ravini U. and Lane, Christopher and Chang, Tay -Rong and Jeng, Horng -Tay and Lin, Hsin and Kronast, Florian and Gray, Alexander X. and Xi, Xiaoxing X. and Nieminen, Jouko and Bansil, Arun and Iavarone, Maria},
abstractNote = {In this study, recent progress in the synthesis of monolayer MoS2, a two-dimensional direct band-gap semiconductor, is paving new pathways toward atomically thin electronics. Despite the large amount of literature, fundamental gaps remain in understanding electronic properties at the nanoscale. Here,we report a study of highly crystalline islands of MoS2 grown via a refined chemical vapor deposition synthesis technique. Using high resolution scanning tunneling microscopy and spectroscopy (STM/STS), photoemission electron microscopy/spectroscopy (PEEM) and μ-ARPES we investigate the electronic properties of MoS2 as a function of the number of layers at the nanoscale and show in-depth how the band gap is affected by a shift of the valence band edge as a function of the layer number. Green’s function based electronic structure calculations were carried out in order to shed light on the mechanism underlying the observed bandgap reduction with increasing thickness, and the role of the interfacial Sulphur atoms is clarified. Our study, which gives new insight into the variation of electronic properties of MoS2 films with thickness bears directly on junction properties of MoS2, and thus impacts electronics application of MoS2.},
doi = {10.1038/srep40559},
journal = {Scientific Reports},
number = ,
volume = 7,
place = {United States},
year = {Fri Jan 13 00:00:00 EST 2017},
month = {Fri Jan 13 00:00:00 EST 2017}
}
Web of Science
Works referenced in this record:
Electric Field Effect in Atomically Thin Carbon Films
journal, October 2004
- Novoselov, K. S.
- Science, Vol. 306, Issue 5696, p. 666-669
Two-dimensional gas of massless Dirac fermions in graphene
journal, November 2005
- Novoselov, K. S.; Geim, A. K.; Morozov, S. V.
- Nature, Vol. 438, Issue 7065, p. 197-200
Fractional quantum Hall effect and insulating phase of Dirac electrons in graphene
journal, October 2009
- Du, Xu; Skachko, Ivan; Duerr, Fabian
- Nature, Vol. 462, Issue 7270
Ultrahigh electron mobility in suspended graphene
journal, June 2008
- Bolotin, K. I.; Sikes, K. J.; Jiang, Z.
- Solid State Communications, Vol. 146, Issue 9-10, p. 351-355
Landau theory of charge-density waves in transition-metal dichalcogenides
journal, August 1975
- McMillan, W. L.
- Physical Review B, Vol. 12, Issue 4
Emergence of coherence in the charge-density wave state of 2H-NbSe2
journal, February 2015
- Chatterjee, U.; Zhao, J.; Iavarone, M.
- Nature Communications, Vol. 6, Issue 1
Chiral Charge-Density Waves
journal, October 2010
- Ishioka, J.; Liu, Y. H.; Shimatake, K.
- Physical Review Letters, Vol. 105, Issue 17
Evolution of the charge density wave state in Cu TiSe
journal, April 2012
- Iavarone, M.; Di Capua, R.; Zhang, X.
- Physical Review B, Vol. 85, Issue 15
Charge Density Wave, Superconductivity, and Anomalous Metallic Behavior in 2D Transition Metal Dichalcogenides
journal, May 2001
- Castro Neto, A. H.
- Physical Review Letters, Vol. 86, Issue 19
Spontaneous exciton condensation in : BCS-like approach
journal, January 2009
- Monney, C.; Cercellier, H.; Clerc, F.
- Physical Review B, Vol. 79, Issue 4
From Mott state to superconductivity in 1T-TaS2
journal, November 2008
- Sipos, B.; Kusmartseva, A. F.; Akrap, A.
- Nature Materials, Vol. 7, Issue 12
Atomically Thin A New Direct-Gap Semiconductor
journal, September 2010
- Mak, Kin Fai; Lee, Changgu; Hone, James
- Physical Review Letters, Vol. 105, Issue 13, Article No.136805
Electronics and optoelectronics of two-dimensional transition metal dichalcogenides
journal, November 2012
- Wang, Qing Hua; Kalantar-Zadeh, Kourosh; Kis, Andras
- Nature Nanotechnology, Vol. 7, Issue 11, p. 699-712
Integrated Circuits and Logic Operations Based on Single-Layer MoS 2
journal, November 2011
- Radisavljevic, Branimir; Whitwick, Michael Brian; Kis, Andras
- ACS Nano, Vol. 5, Issue 12
Single-layer MoS2 transistors
journal, January 2011
- Radisavljevic, B.; Radenovic, A.; Brivio, J.
- Nature Nanotechnology, Vol. 6, Issue 3, p. 147-150
Single-Layer MoS2 Phototransistors
journal, December 2011
- Yin, Zongyou; Li, Hai; Li, Hong
- ACS Nano, Vol. 6, Issue 1, p. 74-80
Thickness dependence of spin polarization and electronic structure of ultra-thin films of MoS2 and related transition-metal dichalcogenides
journal, September 2014
- Chang, Tay-Rong; Lin, Hsin; Jeng, Horng-Tay
- Scientific Reports, Vol. 4, Issue 1
Direct Measurement of the Thickness-Dependent Electronic Band Structure of Using Angle-Resolved Photoemission Spectroscopy
journal, September 2013
- Jin, Wencan; Yeh, Po-Chun; Zaki, Nader
- Physical Review Letters, Vol. 111, Issue 10
Effects of confinement and environment on the electronic structure and exciton binding energy of MoS from first principles
journal, December 2012
- Komsa, Hannu-Pekka; Krasheninnikov, Arkady V.
- Physical Review B, Vol. 86, Issue 24
Local Strain Engineering in Atomically Thin MoS 2
journal, October 2013
- Castellanos-Gomez, Andres; Roldán, Rafael; Cappelluti, Emmanuele
- Nano Letters, Vol. 13, Issue 11
Bandgap Engineering of Strained Monolayer and Bilayer MoS2
journal, July 2013
- Conley, Hiram J.; Wang, Bin; Ziegler, Jed I.
- Nano Letters, Vol. 13, Issue 8, p. 3626-3630
Scanning Tunneling Microscopy Chemical Signature of Point Defects on the Surface
journal, January 2004
- Fuhr, Javier D.; Saúl, Andrés; Sofo, Jorge O.
- Physical Review Letters, Vol. 92, Issue 2
Intrinsic Structural Defects in Monolayer Molybdenum Disulfide
journal, May 2013
- Zhou, Wu; Zou, Xiaolong; Najmaei, Sina
- Nano Letters, Vol. 13, Issue 6, p. 2615-2622
Functionalization of monolayer MoS2 by substitutional doping: A first-principles study
journal, August 2013
- Yue, Qu; Chang, Shengli; Qin, Shiqiao
- Physics Letters A, Vol. 377, Issue 19-20
Photoluminescence from Chemically Exfoliated MoS2
journal, December 2011
- Eda, Goki; Yamaguchi, Hisato; Voiry, Damien
- Nano Letters, Vol. 11, Issue 12, p. 5111-5116
Atomic mechanism of the semiconducting-to-metallic phase transition in single-layered MoS2
journal, April 2014
- Lin, Yung-Chang; Dumcenco, Dumitru O.; Huang, Ying-Sheng
- Nature Nanotechnology, Vol. 9, Issue 5
Vapour phase growth and grain boundary structure of molybdenum disulphide atomic layers
journal, June 2013
- Najmaei, Sina; Liu, Zheng; Zhou, Wu
- Nature Materials, Vol. 12, Issue 8, p. 754-759
Grains and grain boundaries in highly crystalline monolayer molybdenum disulphide
journal, May 2013
- van der Zande, Arend M.; Huang, Pinshane Y.; Chenet, Daniel A.
- Nature Materials, Vol. 12, Issue 6, p. 554-561
Direct Imaging of Band Profile in Single Layer MoS 2 on Graphite: Quasiparticle Energy Gap, Metallic Edge States, and Edge Band Bending
journal, April 2014
- Zhang, Chendong; Johnson, Amber; Hsu, Chang-Lung
- Nano Letters, Vol. 14, Issue 5
Giant bandgap renormalization and excitonic effects in a monolayer transition metal dichalcogenide semiconductor
journal, August 2014
- Ugeda, Miguel M.; Bradley, Aaron J.; Shi, Su-Fei
- Nature Materials, Vol. 13, Issue 12
Bandgap tunability at single-layer molybdenum disulphide grain boundaries
journal, February 2015
- Huang, Yu Li; Chen, Yifeng; Zhang, Wenjing
- Nature Communications, Vol. 6, Issue 1
Synthesis of Large-Area MoS2 Atomic Layers with Chemical Vapor Deposition
journal, March 2012
- Lee, Yi-Hsien; Zhang, Xin-Quan; Zhang, Wenjing
- Advanced Materials, Vol. 24, Issue 17, p. 2320-2325
Electronic properties of graphene: a perspective from scanning tunneling microscopy and magnetotransport
journal, April 2012
- Andrei, Eva Y.; Li, Guohong; Du, Xu
- Reports on Progress in Physics, Vol. 75, Issue 5
Scanning Tunneling Spectroscopy of Graphene on Graphite
journal, April 2009
- Li, Guohong; Luican, Adina; Andrei, Eva Y.
- Physical Review Letters, Vol. 102, Issue 17
Shape Evolution of Monolayer MoS 2 Crystals Grown by Chemical Vapor Deposition
journal, November 2014
- Wang, Shanshan; Rong, Youmin; Fan, Ye
- Chemistry of Materials, Vol. 26, Issue 22
Graphite edge controlled registration of monolayer MoS 2 crystal orientation
journal, May 2015
- Lu, Chun-I; Butler, Christopher John; Huang, Jing-Kai
- Applied Physics Letters, Vol. 106, Issue 18
Transport Properties of Monolayer MoS 2 Grown by Chemical Vapor Deposition
journal, March 2014
- Schmidt, Hennrik; Wang, Shunfeng; Chu, Leiqiang
- Nano Letters, Vol. 14, Issue 4
Thickness and strain effects on electronic structures of transition metal dichalcogenides: 2H- semiconductors ( Mo, W; S, Se, Te)
journal, January 2012
- Yun, Won Seok; Han, S. W.; Hong, Soon Cheol
- Physical Review B, Vol. 85, Issue 3
Observation of monolayer valence band spin-orbit effect and induced quantum well states in MoX2
journal, August 2014
- Alidoust, Nasser; Bian, Guang; Xu, Su-Yang
- Nature Communications, Vol. 5, Issue 1
Antennal transcriptome analysis of the Asian longhorned beetle Anoplophora glabripennis
journal, May 2016
- Hu, Ping; Wang, Jingzhen; Cui, Mingming
- Scientific Reports, Vol. 6, Issue 1
An updated version of wannier90: A tool for obtaining maximally-localised Wannier functions
journal, August 2014
- Mostofi, Arash A.; Yates, Jonathan R.; Pizzi, Giovanni
- Computer Physics Communications, Vol. 185, Issue 8
Ab initio molecular dynamics for open-shell transition metals
journal, November 1993
- Kresse, G.; Hafner, J.
- Physical Review B, Vol. 48, Issue 17
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set
journal, October 1996
- Kresse, G.; Furthmüller, J.
- Physical Review B, Vol. 54, Issue 16, p. 11169-11186
Simplified LCAO Method for the Periodic Potential Problem
journal, June 1954
- Slater, J. C.; Koster, G. F.
- Physical Review, Vol. 94, Issue 6
Tight-binding theory of the spin-orbit coupling in graphene
journal, December 2010
- Konschuh, Sergej; Gmitra, Martin; Fabian, Jaroslav
- Physical Review B, Vol. 82, Issue 24
Transmission eigenchannels from nonequilibrium Green’s functions
journal, September 2007
- Paulsson, Magnus; Brandbyge, Mads
- Physical Review B, Vol. 76, Issue 11
Optical model-solution to the competition between a pseudogap phase and a charge-transfer-gap phase in high-temperature cuprate superconductors
journal, May 2010
- Das, Tanmoy; Markiewicz, R. S.; Bansil, A.
- Physical Review B, Vol. 81, Issue 17
Evidence of strong correlations at the van Hove singularity in the scanning tunneling spectra of superconducting Bi Sr CaCu O single crystals
journal, June 2012
- Nieminen, Jouko; Suominen, Ilpo; Das, Tanmoy
- Physical Review B, Vol. 85, Issue 21
Theory of the scanning tunneling microscope
journal, January 1985
- Tersoff, J.; Hamann, D. R.
- Physical Review B, Vol. 31, Issue 2
Interference between competing tunneling channels and chemical resolution of STM
journal, March 2004
- Nieminen, Jouko A.; Niemi, Eeva; Rieder, Karl-Heinz
- Surface Science, Vol. 552, Issue 1-3
Origin of the Electron-Hole Asymmetry in the Scanning Tunneling Spectrum of the High-Temperature Superconductor
journal, January 2009
- Nieminen, Jouko; Lin, Hsin; Markiewicz, R. S.
- Physical Review Letters, Vol. 102, Issue 3
Tight-binding model and direct-gap/indirect-gap transition in single-layer and multilayer MoS
journal, August 2013
- Cappelluti, E.; Roldán, R.; Silva-Guillén, J. A.
- Physical Review B, Vol. 88, Issue 7
Synthesis of Large-Area MoS2 Atomic Layers with Chemical Vapor Deposition
journal, March 2012
- Lee, Yi-Hsien; Zhang, Xin-Quan; Zhang, Wenjing
- Advanced Materials, Vol. 24, Issue 17, p. 2320-2325
An updated version of wannier90: A tool for obtaining maximally-localised Wannier functions
journal, August 2014
- Mostofi, Arash A.; Yates, Jonathan R.; Pizzi, Giovanni
- Computer Physics Communications, Vol. 185, Issue 8
Photoluminescence from Chemically Exfoliated MoS2
journal, December 2011
- Eda, Goki; Yamaguchi, Hisato; Voiry, Damien
- Nano Letters, Vol. 11, Issue 12, p. 5111-5116
Intrinsic Structural Defects in Monolayer Molybdenum Disulfide
journal, May 2013
- Zhou, Wu; Zou, Xiaolong; Najmaei, Sina
- Nano Letters, Vol. 13, Issue 6, p. 2615-2622
Bandgap Engineering of Strained Monolayer and Bilayer MoS2
journal, July 2013
- Conley, Hiram J.; Wang, Bin; Ziegler, Jed I.
- Nano Letters, Vol. 13, Issue 8, p. 3626-3630
Local Strain Engineering in Atomically Thin MoS 2
journal, October 2013
- Castellanos-Gomez, Andres; Roldán, Rafael; Cappelluti, Emmanuele
- Nano Letters, Vol. 13, Issue 11
Single-Layer MoS2 Phototransistors
journal, December 2011
- Yin, Zongyou; Li, Hai; Li, Hong
- ACS Nano, Vol. 6, Issue 1, p. 74-80
Integrated Circuits and Logic Operations Based on Single-Layer MoS 2
journal, November 2011
- Radisavljevic, Branimir; Whitwick, Michael Brian; Kis, Andras
- ACS Nano, Vol. 5, Issue 12
Vapour phase growth and grain boundary structure of molybdenum disulphide atomic layers
journal, June 2013
- Najmaei, Sina; Liu, Zheng; Zhou, Wu
- Nature Materials, Vol. 12, Issue 8, p. 754-759
Thickness dependence of spin polarization and electronic structure of ultra-thin films of MoS2 and related transition-metal dichalcogenides
journal, September 2014
- Chang, Tay-Rong; Lin, Hsin; Jeng, Horng-Tay
- Scientific Reports, Vol. 4, Issue 1
Antennal transcriptome analysis of the Asian longhorned beetle Anoplophora glabripennis
journal, May 2016
- Hu, Ping; Wang, Jingzhen; Cui, Mingming
- Scientific Reports, Vol. 6, Issue 1
Bond-order potentials: Theory and implementation
journal, May 1996
- Horsfield, A. P.; Bratkovsky, A. M.; Fearn, M.
- Physical Review B, Vol. 53, Issue 19
Emergence of non-Fermi-liquid behavior due to Fermi surface reconstruction in the underdoped cuprate superconductors
journal, May 2010
- Das, Tanmoy; Markiewicz, R. S.; Bansil, A.
- Physical Review B, Vol. 81, Issue 18
Scanning Tunneling Spectroscopy of Graphene on Graphite
text, January 2008
- Li, Guohong; Luican, Adina; Andrei, Eva Y.
- arXiv
Fractional quantum Hall effect and insulating phase of Dirac electrons in graphene
text, January 2009
- Du, Xu; Skachko, Ivan; Duerr, Fabian
- arXiv
Electronic properties of graphene: a perspective from scanning tunneling microscopy and magneto-transport
text, January 2012
- Andrei, Eva Y.; Li, Guohong; Du, Xu
- arXiv
Grains and grain boundaries in highly crystalline monolayer molybdenum disulfide
text, January 2013
- van der Zande, Arend M.; Huang, Pinshane Y.; Chenet, Daniel A.
- arXiv
Tight-binding model and direct-gap/indirect-gap transition in single-layer and multi-layer MoS$_2$
text, January 2013
- Cappelluti, E.; Roldán, R.; Silva-Guillén, J. A.
- arXiv
Direct imaging of the band profile in single layer ${\small MoS_2}$ on graphite: quasiparticle energy gap, metallic edge states and edge band bending
text, January 2014
- Zhang, Chendong; Johnson, Amber; Hsu, Chang-Lung
- arXiv
Transmission eigenchannels from non-equilibrium Green's functions
text, January 2007
- Paulsson, Magnus; Brandbyge, Mads
- arXiv
Tight-binding theory of the spin-orbit coupling in graphene
text, January 2010
- Konschuh, Sergej; Gmitra, Martin; Fabian, Jaroslav
- Universität Regensburg
Works referencing / citing this record:
Evolution of Metastable Defects and Its Effect on the Electronic Properties of MoS2 Films
journal, April 2018
- Precner, M.; Polaković, T.; Qiao, Qiao
- Scientific Reports, Vol. 8, Issue 1
Bidirectional heterostructures consisting of graphene and lateral MoS 2 /WS 2 composites: a first-principles study
journal, January 2019
- Tang, Yingqi; Li, Hao; Mao, Xiaotong
- RSC Advances, Vol. 9, Issue 60
Roadmap on finding chiral valleys: screening 2D materials for valleytronics
journal, June 2018
- Bussolotti, Fabio; Kawai, Hiroyo; Ooi, Zi En
- Nano Futures, Vol. 2, Issue 3
Structure–Function Correlations in Sputter Deposited Gold/Fluorocarbon Multilayers for Tuning Optical Response
journal, September 2019
- Pandit, Pallavi; Schwartzkopf, Matthias; Rothkirch, André
- Nanomaterials, Vol. 9, Issue 9
Structure-function correlations in sputter deposited gold/fluorocarbon multilayers for tuning optical response
text, January 2019
- Pandit, Pallavi; Schwartzkopf, Matthias; Rothkirch, Andre
- Deutsches Elektronen-Synchrotron, DESY, Hamburg
Structure–Function Correlations in Sputter Deposited Gold/Fluorocarbon Multilayers for Tuning Optical Response
text, January 2019
- Pandit, Pallavi; Schwartzkopf, Matthias; Rothkirch, Andre
- Deutsches Elektronen-Synchrotron, DESY, Hamburg
Evolution of Metastable Defects and Its Effect on the Electronic Properties of MoS2 Films
journal, April 2018
- Precner, M.; Polaković, T.; Qiao, Qiao
- Scientific Reports, Vol. 8, Issue 1
Structure-function correlations in sputter deposited gold/fluorocarbon multilayers for tuning optical response
text, January 2019
- Pandit, Pallavi; Schwartzkopf, Matthias; Rothkirch, Andre
- Deutsches Elektronen-Synchrotron, DESY, Hamburg